criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
   int N;
   cin>>N;
   
  int sum=0;
  
  for(int i=0;i<N;i++){
    int l,r;
    cin>>l>>r;
    x=r-l+1;
    sum+=x;
  }
  cout<<sum<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'x' was not declared in this scope
   13 |     x=r-l+1;
      |     ^
Language: Java

import java.util.Scanner;

public class Main6 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();

        int sum = 0;
        for (int i = 0; i < N; i++) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            sum += b - a + 1;
        }

        System.out.println(sum);
        scanner.close();
    }
}

Compiler output:
Main.java:3: error: class Main6 is public, should be declared in a file named Main6.java
public class Main6 {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N ,l ,r;
  cin >> N;

   for (int i = 0; i < N; i++) {
   
   cin >> l >> r;
  int sum = 0;
  sum =  r - l + 1;
     
  cout << sum <<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:14:22: error: expected '}' at end of input
   14 |   cout << sum <<endl;
      |                      ^
a.cc:8:32: note: to match this '{'
    8 |    for (int i = 0; i < N; i++) {
      |                                ^
a.cc:14:22: error: expected '}' at end of input
   14 |   cout << sum <<endl;
      |                      ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int N;
    cin >> N;
    int sum = 0;
    for(int i=0; i<N; i++) {
        int l;
        int r;
        cin >> l >> r;
        int add = r-l+1
        sum += add;
    }
    
    cout << sum <<endl;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: expected ',' or ';' before 'sum'
   13 |         sum += add;
      |         ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  
  int sum = 0;
  for (int i=0;i<N;i++) {
    int l, r;
    cin >> l >> r;
    sum += r-l+1
  }
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: expected ';' before '}' token
   12 |     sum += r-l+1
      |                 ^
      |                 ;
   13 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){

  int N;
  cin >> N;
  
  int count=0;
  for(int i=0;i<N;i++){
    cin >> l >> r;
    count += (r-l+1);
  }
  cout << count << endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:12: error: 'l' was not declared in this scope
   11 |     cin >> l >> r;
      |            ^
a.cc:11:17: error: 'r' was not declared in this scope
   11 |     cin >> l >> r;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){

  int N;
  cin >> N;
  
  int count=0;
  for(int i=0;i<N;i++){
    cin >> l >> r;
    count+=(r-l+1)
  }
  cout << count << endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:12: error: 'l' was not declared in this scope
   11 |     cin >> l >> r;
      |            ^
a.cc:11:17: error: 'r' was not declared in this scope
   11 |     cin >> l >> r;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int N,S ;
  cin >> N;
  S = 0
  
    for(int i = 0; i < N; i++){
	
    int l, r;
    cin >> l >> r;
      
    S += r - l + 1
    }
  
  cout << S << endl;
}
      
    

Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before 'for'
    7 |   S = 0
      |        ^
      |        ;
    8 | 
    9 |     for(int i = 0; i < N; i++){
      |     ~~~ 
a.cc:9:20: error: 'i' was not declared in this scope
    9 |     for(int i = 0; i < N; i++){
      |                    ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  int number = 0;
  int l,r
  for(int i=0;i<N;i++){
    cin>>l>>r;
    number = r-l;
    number += number;
  }
  cout<<number<<endl;
}

    


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: expected initializer before 'for'
    8 |   for(int i=0;i<N;i++){
      |   ^~~
a.cc:8:15: error: 'i' was not declared in this scope
    8 |   for(int i=0;i<N;i++){
      |               ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  int number = 0;
  for(int i=0;i<N;i++){
    cin>>l>>r;
    number = r-l;
    number += number;
  }
  cout<<number<<endl;
}

    


Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: 'l' was not declared in this scope
    8 |     cin>>l>>r;
      |          ^
a.cc:8:13: error: 'r' was not declared in this scope
    8 |     cin>>l>>r;
      |             ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  vector<int> l(N),r(N);
  for(int i=0;i<N;i++){
    cin>>l.at(i);
    cin>>r.at(i);
    number = r.at(i)-l.at(i);
    number += number;
  }
  cout<<number<<endl;
}

    


Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'number' was not declared in this scope
   10 |     number = r.at(i)-l.at(i);
      |     ^~~~~~
a.cc:13:9: error: 'number' was not declared in this scope
   13 |   cout<<number<<endl;
      |         ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N,r,l,i;
  sum 0;
  cin >> N >> r >> l >> i;

  for(int i = 0; i < N; i++){
    cout << N*(r-l) << endl;
  }
}
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'sum' was not declared in this scope
    6 |   sum 0;
      |   ^~~
a.cc: At global scope:
a.cc:13:5: error: expected declaration before '}' token
   13 |     }
      |     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int sum = 0;
  int p1, p2;
  for(int i = 0; i < N; i++){
    cin >> p1 >> p2;
    sum += (p2-p1+1)
  };
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: expected ';' before '}' token
   11 |     sum += (p2-p1+1)
      |                     ^
      |                     ;
   12 |   };
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int sum = 0;
  int p1, p2;
  for(int i = 0; i < N; i++){
    cin >> p1 >> p2;
    sum += (p2-p1+1)
  }
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: expected ';' before '}' token
   11 |     sum += (p2-p1+1)
      |                     ^
      |                     ;
   12 |   }
      |   ~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){int N,l,r,a=0;cin>>N;for(int i=0;i<N;i++){cin>>l>>r;a++r+1-l;}cout<<a<<endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:67: error: expected ';' before 'r'
    3 | int main(){int N,l,r,a=0;cin>>N;for(int i=0;i<N;i++){cin>>l>>r;a++r+1-l;}cout<<a<<endl;}
      |                                                                   ^
      |                                                                   ;
Language: C++

#include <iosstream>
using namespace std;


int main() {
  int N;
  int sum=0;
  cin >> N;
  vector<int> l(N);
  vector<int> r(N);
  for(int i=0;i<N;i++){
  	cin >> l.at(i) >> r.at(i);
    sum += r.at(i)-l.at(i);
  }
  cout << sum+1 << endl;
}


Compiler output:
a.cc:1:10: fatal error: iosstream: No such file or directory
    1 | #include <iosstream>
      |          ^~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, i, ri, si, S;
  S = 0;
  i = 0;
  cin >> N;
  while (i < N) {
    cin >> li >> ri;
    S += ri - li + 1;
    i++;
  }
  cout << S << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: 'li' was not declared in this scope; did you mean 'si'?
   10 |     cin >> li >> ri;
      |            ^~
      |            si
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, i, ri, si, S;
  S = 0;
  i = 0;
  cin >> N;
  while (i < N) {
    cis >> li >> ri;
    S += ri - li + 1;
    i++;
  }
  cout << S << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'cis' was not declared in this scope; did you mean 'cos'?
   10 |     cis >> li >> ri;
      |     ^~~
      |     cos
a.cc:10:12: error: 'li' was not declared in this scope; did you mean 'si'?
   10 |     cis >> li >> ri;
      |            ^~
      |            si
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, i, ri, si, S;
  S = 0;
  cin >> N;
  while (i = 0; i < N;) {
    cis >> li >> ri;
    S += ri - li + 1;
    i++;
  }
  cout << S << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:15: error: expected ')' before ';' token
    8 |   while (i = 0; i < N;) {
      |         ~     ^
      |               )
a.cc:8:23: error: expected primary-expression before ')' token
    8 |   while (i = 0; i < N;) {
      |                       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, i, ri, si, S;
  S = 0;
  cis >> N;
  while (i == 0; i < N;) {
    cis >> li >> ri;
    S += ri - li + 1;
    i++;
  }
  cout << S << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cis' was not declared in this scope; did you mean 'cos'?
    7 |   cis >> N;
      |   ^~~
      |   cos
a.cc:8:16: error: expected ')' before ';' token
    8 |   while (i == 0; i < N;) {
      |         ~      ^
      |                )
a.cc:8:24: error: expected primary-expression before ')' token
    8 |   while (i == 0; i < N;) {
      |                        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int x = 0;
  
  for ( i = 0 ; i < N ; i++ ) {
    int r , l ;
    cin >> l >> r;
    x += r - l;
  }
  cout << x << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'i' was not declared in this scope
    9 |   for ( i = 0 ; i < N ; i++ ) {
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int N,l,r;
  cin >> N;
  
  int count = 0;
  for(int i=0; i<N; i++){
    cin >> l >> r;
    coun += r-l+1;
  }
  
  cout << count <<endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'coun' was not declared in this scope; did you mean 'count'?
   11 |     coun += r-l+1;
      |     ^~~~
      |     count
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  
  for (int i = 0, i < N, i++) {
    int l, r, sum;
    sum = 0;
    cin >> l >> r;
    
    sum += l - r + 1;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: expected ';' before '<' token
    8 |   for (int i = 0, i < N, i++) {
      |                    ^~
      |                    ;
a.cc:8:21: error: expected primary-expression before '<' token
    8 |   for (int i = 0, i < N, i++) {
      |                     ^
a.cc:8:29: error: expected ';' before ')' token
    8 |   for (int i = 0, i < N, i++) {
      |                             ^
      |                             ;
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  
  for (int i = 0, i < N, i++) {
    int l, r, sum;
    sum = 0;
    cin >> l >> r;
    
    sum += l - r + 1;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: expected ';' before '<' token
    8 |   for (int i = 0, i < N, i++) {
      |                    ^~
      |                    ;
a.cc:8:21: error: expected primary-expression before '<' token
    8 |   for (int i = 0, i < N, i++) {
      |                     ^
a.cc:8:29: error: expected ';' before ')' token
    8 |   for (int i = 0, i < N, i++) {
      |                             ^
      |                             ;
a.cc:14:2: error: expected '}' at end of input
   14 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {

  int x = 0;
  
  int N;
  cin >> N;
  
  for (int i = 0; i < N; i++){
    int li, ri;
    cin >> li  >> ri;
    x += ri-li+1
  }
 cout << x << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:17: error: expected ';' before '}' token
   14 |     x += ri-li+1
      |                 ^
      |                 ;
   15 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int N , sum;
  cin >> N;
  
  for (int i = 0; i < N; i++) {
    int l , r;
    cin >> l , r;
    
    sum += (r-l+1)
  }
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: expected ';' before '}' token
   12 |     sum += (r-l+1)
      |                   ^
      |                   ;
   13 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a;
  cin >> a;
  int num = 0;
  while (a < 0) {
    int b ,int c;
    cin >> b >> c;
    num += (b - c + 1);
    a--;
  }
  cout << num << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:12: error: expected unqualified-id before 'int'
    9 |     int b ,int c;
      |            ^~~
a.cc:10:17: error: 'c' was not declared in this scope
   10 |     cin >> b >> c;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a, int b ,int c;
  cin >> a;
  int num = 0;
  while (a < 0) {
    cin >> b >> c;
    num += (b - c + 1);
    a--;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: expected unqualified-id before 'int'
    5 |   int a, int b ,int c;
      |          ^~~
a.cc:9:12: error: 'b' was not declared in this scope
    9 |     cin >> b >> c;
      |            ^
a.cc:9:17: error: 'c' was not declared in this scope
    9 |     cin >> b >> c;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a, int b ,int c;
  cin >> a;
  int num = 0;
  for (a < 0) {
    cin >> b >> c;
    num += (b - c + 1);
    a--;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: expected unqualified-id before 'int'
    5 |   int a, int b ,int c;
      |          ^~~
a.cc:8:13: error: expected ';' before ')' token
    8 |   for (a < 0) {
      |             ^
      |             ;
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
a.cc:12:4: error: expected ';' before '}' token
   12 |   }
      |    ^
      |    ;
   13 | }
      | ~   
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
a.cc:12:4: error: expected ')' before '}' token
   12 |   }
      |    ^
      |    )
   13 | }
      | ~   
a.cc:8:7: note: to match this '('
    8 |   for (a < 0) {
      |       ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
Language: C++

#include <cmath>
#include <iostream>
#define int long long

using namespace std;

int n,b,a;
int tot;

signed main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a>>b;
        ans+=(b-a+1);
    }
    cout<<ans;
    return 0;
}

//Flamire txdy

Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   14 |         ans+=(b-a+1);
      |         ^~~
      |         abs
a.cc:16:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |     cout<<ans;
      |           ^~~
      |           abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N,sum=0;
  cin>>N;
  for(int i=0;i<N;i++){
  int j=0,k=0;
  cin>>j>>k;
  sum+=k-j+1
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: expected ';' before '}' token
   10 |   sum+=k-j+1
      |             ^
      |             ;
   11 |   }
      |   ~
Language: C++

int main(){
	int H,N,L,R;
	H = 0
	cin >> N;
	
	for(int i = N; i>0;i--){
		cin >> L >> R;
		R = R - L + 1;
		H = H + R;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:14: error: expected ';' before 'cin'
    3 |         H = 0
      |              ^
      |              ;
    4 |         cin >> N;
      |         ~~~   
a.cc:7:17: error: 'cin' was not declared in this scope
    7 |                 cin >> L >> R;
      |                 ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, l, r, sum;
  cin>> N;
  sum = 0
  for (int i = 0; i < N; i++) {
  cin >> l >> r;
    sum= r - l + 1 + sum
  }
  cout<<sum;


}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: expected ';' before 'for'
    7 |   sum = 0
      |          ^
      |          ;
    8 |   for (int i = 0; i < N; i++) {
      |   ~~~     
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   for (int i = 0; i < N; i++) {
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, i, sum;
  cin N;
  for (i = 0;i < N;i++) {
    int l, r, num;
    cin >> l >> r;
    num = r - l + 1;
    sum += num;
  } 
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:6: error: expected ';' before 'N'
    6 |   cin N;
      |      ^~
      |      ;
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int n,m;
  
  for(int i=0;i<n;i++){
    int l,r;
    cin >> l >> r;
    m+=r-l
    if(i==n-1)
      cout << m << endl;
    else
      continue;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:11: error: expected ';' before 'if'
   10 |     m+=r-l
      |           ^
      |           ;
   11 |     if(i==n-1)
      |     ~~     
a.cc:13:5: error: 'else' without a previous 'if'
   13 |     else
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int n,m;
  
  for(i=0;i<n;i++){
    int l,r;
    cin >> l >> r;
    m+=r-l;
  }
  cout << m << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'i' was not declared in this scope
    7 |   for(i=0;i<n;i++){
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int n,m;
  
  for(i=0;i<n;i++){
    int l,r,;
    cin >> l >> r;
    m+=r-l;
  }
  cout << m << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'i' was not declared in this scope
    7 |   for(i=0;i<n;i++){
      |       ^
a.cc:8:13: error: expected unqualified-id before ';' token
    8 |     int l,r,;
      |             ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, A, b, c;
  cin >> N;
  c = 0
  
  for (int i = 0; i < N; i++) {
    cin >> A >> b;
    c = c + b - A + 1
  }
  cout << c << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before 'for'
    7 |   c = 0
      |        ^
      |        ;
    8 | 
    9 |   for (int i = 0; i < N; i++) {
      |   ~~~   
a.cc:9:19: error: 'i' was not declared in this scope
    9 |   for (int i = 0; i < N; i++) {
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, A, b, c;
  cin >> N;
  c = 0
  
  for (int i = 0; i < N; i++) {
    cin >> A >> b;
    c = c + b - A + 1
  }
  cout << c <<;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before 'for'
    7 |   c = 0
      |        ^
      |        ;
    8 | 
    9 |   for (int i = 0; i < N; i++) {
      |   ~~~   
a.cc:9:19: error: 'i' was not declared in this scope
    9 |   for (int i = 0; i < N; i++) {
      |                   ^
a.cc:13:15: error: expected primary-expression before ';' token
   13 |   cout << c <<;
      |               ^
Language: C++

#include<bits/stdC++.h>
using namespace std;

int main() {
	int N, sum;
  	cin >> N;
  	sum = 0;
  for(int i = 0; i < N; i++) {
  	int a, b;
    cin >> a >> b;
    sum += b - a + 1;
  }
  cout << sum << endl;
}

Compiler output:
a.cc:1:9: fatal error: bits/stdC++.h: No such file or directory
    1 | #include<bits/stdC++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++>
using namespace std;
 
int main(){
	int N;
  	cin >> N;
  	int sheet = 100000;
  	for(int i =0;i<N;i++){
      int a,b;
      cin>>a>>b;
      sheet -= b-a+1;
    }
  	cout<<sheet<<endl;
}

Compiler output:
a.cc:1:10: fatal error: bits/stdc++: No such file or directory
    1 | #include <bits/stdc++>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++>;
using namespace std;

int main(){
	int N;
  	cin >> N;
  	int sheet = 100000;
  	for(int i =0;i<N;i++){
      int a,b;
      cin>>a>>b;
      sheet -= b-a+1;
    }
  	cout<<sheet<<endl;
}

Compiler output:
a.cc:1:23: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++>;
      |                       ^
a.cc:1:10: fatal error: bits/stdc++: No such file or directory
    1 | #include <bits/stdc++>;
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int i,N;
  int sum=0;
  cin >> N;

  for(int i=0;i<N;i++){
	cin >> l,r; 
    sum=sum+(r-l);
    }
	cout << sum << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: 'l' was not declared in this scope
   10 |         cin >> l,r;
      |                ^
a.cc:10:18: error: 'r' was not declared in this scope
   10 |         cin >> l,r;
      |                  ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  int n,i;
  int sum=0;
  cin >> n;
  int l[2,n]
  for(i=0;i<n;i++){
    cin >> l[i,0] >> l[i,1];
    sum+=l[i,0]-l[i,1]+1;
  }
  cout << sum;
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: expected ']' before ',' token
    7 |   int l[2,n]
      |          ^
      |          ]
a.cc:7:12: error: expected initializer before ']' token
    7 |   int l[2,n]
      |            ^
a.cc:8:18: error: expected ';' before ')' token
    8 |   for(i=0;i<n;i++){
      |                  ^
      |                  ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N;
  string "sum"=0;
  cin>>N;
    for(i=1;i<=N;i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: expected unqualified-id before string constant
    6 |   string "sum"=0;
      |          ^~~~~
a.cc:10:7: error: 'sum' was not declared in this scope
   10 |       sum+=r_i-l_i+1;
      |       ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N;
  string "sum"==0;
  cin>>N;
    for(i=1;i<=N;i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: expected unqualified-id before string constant
    6 |   string "sum"==0;
      |          ^~~~~
a.cc:10:7: error: 'sum' was not declared in this scope
   10 |       sum+=r_i-l_i+1;
      |       ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N;
  string sum==0;
  cin>>N;
    for(i=1;i<=N;i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: expected initializer before '==' token
    6 |   string sum==0;
      |             ^~
a.cc:10:7: error: 'sum' was not declared in this scope
   10 |       sum+=r_i-l_i+1;
      |       ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N;
  string sum;
  cin>>N;
    for(i=1,sum=0;i<=N;i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: ambiguous overload for 'operator=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
    8 |     for(i=1,sum=0;i<=N;i++) {
      |                 ^
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:817:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  817 |       operator=(const basic_string& __str)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:828:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  828 |       operator=(const _CharT* __s)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:840:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  840 |       operator=(_CharT __c)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:858:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  858 |       operator=(basic_string&& __str)
      |       ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N;
  string sum;
  cin>>N;
  sum=0
    for(i=1,i<=N,i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: ambiguous overload for 'operator=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
    8 |   sum=0
      |       ^
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:817:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  817 |       operator=(const basic_string& __str)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:828:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  828 |       operator=(const _CharT* __s)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:840:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  840 |       operator=(_CharT __c)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:858:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  858 |       operator=(basic_string&& __str)
      |       ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int i,l_i,r_i,N,;
  string sum;
  cin>>N;
  sum=0
    for(i=1,i<=N,i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:19: error: expected unqualified-id before ';' token
    5 |   int i,l_i,r_i,N,;
      |                   ^
a.cc:8:7: error: ambiguous overload for 'operator=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
    8 |   sum=0
      |       ^
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:817:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  817 |       operator=(const basic_string& __str)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:828:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  828 |       operator=(const _CharT* __s)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:840:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  840 |       operator=(_CharT __c)
      |       ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:858:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
  858 |       operator=(basic_string&& __str)
      |       ^~~~~~~~
Language: C++

#include <stdc++.h>
using namespace std;

int main(){
  int i,l_i,r_i,N,;
  string sum;
  cin>>N;
  sum=0
    for(i=1,i<=N,i++) {
      cin>>l_i>>r_i;
      sum+=r_i-l_i+1;
      if(i==N){
        cout<<sum<<endl;
      }
    }
}

Compiler output:
a.cc:1:10: fatal error: stdc++.h: No such file or directory
    1 | #include <stdc++.h>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int l,r,N,x=0;
  cin >> N;
  for (int i = 0; i < N; i++) {
    cin >> l >> r;
    x+=r-l+1
  }
  cout<<x<<endl
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected ';' before '}' token
    9 |     x+=r-l+1
      |             ^
      |             ;
   10 |   }
      |   ~          
a.cc:11:16: error: expected ';' before '}' token
   11 |   cout<<x<<endl
      |                ^
      |                ;
   12 | }
      | ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    int l,r,ans;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>l>>r;
        ans+=r-l+1;
    }
    cout<<ans<<endl;
}
return 0;

Compiler output:
a.cc:13:1: error: expected unqualified-id before 'return'
   13 | return 0;
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int N;
  cin >> N;
  long long int l,r;
  cin >> l >> r;
  long long int sum=0;
  for(int i=0;i<N;i++){
    sum+=r-l+1;
      }
  cout << sum << endl;}
}


Compiler output:
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int N;
  cin >> N;
  string l,r;
  cin >> l >> r;
  long long int sum=0;
  for(int i=0;i<N;i++){
    sum+=r[i]-l[i]+1;
      }
  cout << sum << endl;}
}


Compiler output:
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int N;
  cin >> N;
  string l,r;
  cin >> l >> r;
  long long int sum=0;
  for(int i=0;i<N;i++){
    sum+=r[i]-l[i]+1
      }
  cout << sum << endl;}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: expected ';' before '}' token
   10 |     sum+=r[i]-l[i]+1
      |                     ^
      |                     ;
   11 |       }
      |       ~              
a.cc: At global scope:
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int N;
  cin >> N;
  string l,r;
  cin >> l >> r;
  long long int sum=0;
  for(int i=0;i<N;i++){
    sum+=r[i]-l[i]+1}
  cout << sum << endl;}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: expected ';' before '}' token
   10 |     sum+=r[i]-l[i]+1}
      |                     ^
      |                     ;
a.cc: At global scope:
a.cc:12:1: error: expected declaration before '}' token
   12 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int N;
  cin >> N;
  long long int l,r;
  cin >> l >> r;
  long long int sum=0;
  for(int i=0;i<N;i++){
    sum+=r[i]-l[i]+1}
  cout << sum << endl;}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:11: error: invalid types 'long long int[int]' for array subscript
   10 |     sum+=r[i]-l[i]+1}
      |           ^
a.cc:10:16: error: invalid types 'long long int[int]' for array subscript
   10 |     sum+=r[i]-l[i]+1}
      |                ^
a.cc: At global scope:
a.cc:12:1: error: expected declaration before '}' token
   12 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int z = 0
  for (int i = 0; i < N; i++) {
    int x,y;
    cin >> x >> y;
    z += y - x + 1
  }
  cout << z << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: expected ',' or ';' before 'for'
    8 |   for (int i = 0; i < N; i++) {
      |   ^~~
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   for (int i = 0; i < N; i++) {
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int z == 0
  for (int i = 0; i < N; i++) {
    int x,y;
    cin >> x >> y;
    z += y - x + 1
  }
  cout << z << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: expected initializer before '==' token
    7 |   int z == 0
      |         ^~
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   for (int i = 0; i < N; i++) {
      |                   ^
a.cc:13:11: error: 'z' was not declared in this scope
   13 |   cout << z << endl;
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int roop;
  cin >> roop;
  int sum =0;
  for(int i=1;i =< roop;i++){
    int start;
    int end;
    cin >> start >> end;
    sum = sum + 1 + end - start;
  }
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: expected primary-expression before '<' token
    8 |   for(int i=1;i =< roop;i++){
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,cnt=0;cin>>n;
    for(int i=1;i<=n;i++){int l, r;cin>>l>>r;ans+=r-l+1;}
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:46: error: 'ans' was not declared in this scope; did you mean 'abs'?
    5 |     for(int i=1;i<=n;i++){int l, r;cin>>l>>r;ans+=r-l+1;}
      |                                              ^~~
      |                                              abs
a.cc:6:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
    6 |     cout<<ans<<endl;
      |           ^~~
      |           abs
Language: C++

int main() {
 int N;
  cin >> N;
 
    int s = 0;
  
  for (int i = 0; i < N; i++) {
    int l,r;
    cin >> l,r;
    
    s = r - l +1;

  }
  
  cout << s << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> N;
      |   ^~~
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << s << endl;
      |   ^~~~
a.cc:15:16: error: 'endl' was not declared in this scope
   15 |   cout << s << endl;
      |                ^~~~
Language: C++

int main() {
 int N;
  cin >> N;
 
    int s = 0;
  
  for (int i = 0; i < N; i++) {
    int l,r;
    cin >> l,r;
    
    s = r - l +1;

  }
  
  cout << s;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> N;
      |   ^~~
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << s;
      |   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){

int N;
cin >> N;
int l[i], r[i];
for (int i = 0; i < N; i++) {
  cin >> l[i] >> r[i];
}

int count = 0;
for(int i = 0; i < N; i++){
  count += ((r[i]- l[i]) + 1);
}

cout << count << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
    8 | int l[i], r[i];
      |       ^
a.cc:10:10: error: 'l' was not declared in this scope
   10 |   cin >> l[i] >> r[i];
      |          ^
a.cc:10:18: error: 'r' was not declared in this scope
   10 |   cin >> l[i] >> r[i];
      |                  ^
a.cc:15:14: error: 'r' was not declared in this scope
   15 |   count += ((r[i]- l[i]) + 1);
      |              ^
a.cc:15:20: error: 'l' was not declared in this scope
   15 |   count += ((r[i]- l[i]) + 1);
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, l, r;
  cin >> N;
  int sum = 0;
 
  for (int i = 0; i < N; i++) {
    cin >> l[i] >> r[i];
  }
  
  for (int i = 0; i < N; i++) {
    number[i] = r[i] - l[i] + 1;
    sum += number[i];
  }

  cout << sum << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: invalid types 'int[int]' for array subscript
   10 |     cin >> l[i] >> r[i];
      |             ^
a.cc:10:21: error: invalid types 'int[int]' for array subscript
   10 |     cin >> l[i] >> r[i];
      |                     ^
a.cc:14:5: error: 'number' was not declared in this scope
   14 |     number[i] = r[i] - l[i] + 1;
      |     ^~~~~~
a.cc:14:18: error: invalid types 'int[int]' for array subscript
   14 |     number[i] = r[i] - l[i] + 1;
      |                  ^
a.cc:14:25: error: invalid types 'int[int]' for array subscript
   14 |     number[i] = r[i] - l[i] + 1;
      |                         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, l, r;
  cin >> N;
  int sum = 0;
 
  for (int i = 0; i < N; i++) {
    cin >> l[i] >> r[i];
    number[i] = r[i] - l[i] + 1;
    sum += number[i];
  }

  cout << sum << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: invalid types 'int[int]' for array subscript
   10 |     cin >> l[i] >> r[i];
      |             ^
a.cc:10:21: error: invalid types 'int[int]' for array subscript
   10 |     cin >> l[i] >> r[i];
      |                     ^
a.cc:11:5: error: 'number' was not declared in this scope
   11 |     number[i] = r[i] - l[i] + 1;
      |     ^~~~~~
a.cc:11:18: error: invalid types 'int[int]' for array subscript
   11 |     number[i] = r[i] - l[i] + 1;
      |                  ^
a.cc:11:25: error: invalid types 'int[int]' for array subscript
   11 |     number[i] = r[i] - l[i] + 1;
      |                         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, l, r;
  cin >> N;
  sum = 0;
 
  for (int i = 0; i < N; i++) {
    cin >> l, r;
    number = r - l + 1;
    sum += number; 
  }

  cout << sum << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'sum' was not declared in this scope
    7 |   sum = 0;
      |   ^~~
a.cc:11:5: error: 'number' was not declared in this scope
   11 |     number = r - l + 1;
      |     ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int total = 0, N;

  cin >> N;
  
  for (i = 0; i < N; ++i) {
    int a, b;
    cin >> a >> b;
    total += b - a + 1;
  }

  cout << total << endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: 'i' was not declared in this scope
    9 |   for (i = 0; i < N; ++i) {
      |        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int N
cin >> N
 
int main() {
 
  for (int i = 0; i < N; i++) {
    int L,R;
    cin >> L >> R
    cout<< R - L + 1<<endl;
  }
 
}

Compiler output:
a.cc:5:1: error: expected initializer before 'cin'
    5 | cin >> N
      | ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int N
cin>>N
 
int main() {
 
  for (int i = 0; i < N; i++) {
    int L,R;
    cin >> L >> R
    cout<< R - L + 1<<endl;
  }
 
}

Compiler output:
a.cc:5:1: error: expected initializer before 'cin'
    5 | cin>>N
      | ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main () {
  int N;
  cin >> N;
  
  int l, r;
  
  int number;
  number = 0;
  int sum;
  sum = 0;
  
  for (int i = 0; i > N; i++) {
    cin >> l >> r;
    sum = number + r - l + 1;
    number = sum
    
  }
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:17: error: expected ';' before '}' token
   18 |     number = sum
      |                 ^
      |                 ;
   19 | 
   20 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main () {
  int N;
  cin >> N;
  
  int number;
  number = 0;
  int sum;
  sum = 0;
  
  for (i = 0; i > N; i++) {
    cin >> l >> r;
    sum = number + r - l + 1;
    number = sum
    
  }
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:8: error: 'i' was not declared in this scope
   13 |   for (i = 0; i > N; i++) {
      |        ^
a.cc:14:12: error: 'l' was not declared in this scope
   14 |     cin >> l >> r;
      |            ^
a.cc:14:17: error: 'r' was not declared in this scope
   14 |     cin >> l >> r;
      |                 ^
a.cc:16:17: error: expected ';' before '}' token
   16 |     number = sum
      |                 ^
      |                 ;
   17 | 
   18 |   }
      |   ~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
	int n,a[1000]={false},l,r,g=o;
	cin>>n;
    for(int i=1; i<=n; ++i) {
        cin>>l>>r;
        --l;
        --r;
        for(int i=l; i<=r; ++i) {
            a[i]=true;
        }
    }
    for(int i=0; i<n; ++i) {
        if(a[i]==true) {
            ++g;
        }
    }
    cout<<g<<'\n';
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:37: error: 'o' was not declared in this scope
    4 |         int n,a[1000]={false},l,r,g=o;
      |                                     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n;
  cin >> n;
  int x=0;
  
  for(int i=0;i<n;i++){
    int l,r;
    cin >> l >> r;
    x +=r-l+1
  }
  
  cout << x <<endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: error: expected ';' before '}' token
   12 |     x +=r-l+1
      |              ^
      |              ;
   13 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n;
  cin >> n;
  int x=0
  
  for(int i=0;i<n;i++){
    int l,r;
    cin >> l >> r;
    X +=r-l+1
  }
  
  cout << x <<endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: expected ',' or ';' before 'for'
    9 |   for(int i=0;i<n;i++){
      |   ^~~
a.cc:9:15: error: 'i' was not declared in this scope
    9 |   for(int i=0;i<n;i++){
      |               ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  int n,ans=0;
  cin>>n;
  int l[n],r[n];
  for(int i=0;i<n;i++)cin>>l[i]>>r[i];
  for(int i=0;i<n;i++)
    x+=r[i]-l[i]+1;
  cout<<x<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'x' was not declared in this scope
    9 |     x+=r[i]-l[i]+1;
      |     ^
a.cc:10:9: error: 'x' was not declared in this scope
   10 |   cout<<x<<endl;
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int N,I,J;
  cin >> N
    cin >> I >> J
    for(i = I; i < J ;i++){
      int res; 
      res += I-J+1;
      cout << res << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:11: error: expected ';' before 'cin'
    6 |   cin >> N
      |           ^
      |           ;
    7 |     cin >> I >> J
      |     ~~~    
a.cc:8:16: error: 'i' was not declared in this scope
    8 |     for(i = I; i < J ;i++){
      |                ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main() {
  int n, count=0, a, b;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a >> b;
    count+=b-a+1;
  }
  cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'i' was not declared in this scope
    7 |   for(i=0;i<n;i++){
      |       ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <deque>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <cstring>
#include <iomanip>
#include <utility>
 
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,n) for(int i=1;i<=(n);i++)
#define lol long long
#define mp make_pair
#define fi first
#define se second
#define pu push_back
#define SYOU(x) setprecision(x+1)
#define abs(x,y) (max(x,y)-min(x,y))
#define SUM(n) ((n)+1)*(n)/2
const int INF = 0x3f3f3f3f;
const long long LINF = 0x3f3f3f3f3f3f3f3fLL;
const int MOD = (1e9)+7;
#define all(v) v.begin(),v.end()
using namespace std;
using pii = pair<int,int>;
typedef vector<int> vit;

int main(){
  cin.tie(0);
  ios::sync_with_stdio(0);

  int n, sum = 0;
  cin >> n;
  int l, r;
  rep(i,n){
    cin >> l >> r;
    sum += (r - l) + 1;
  }
  cout << sum << '\n'
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:22: error: expected ';' before 'return'
   44 |   cout << sum << '\n'
      |                      ^
      |                      ;
   45 | 
   46 |   return 0;
      |   ~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int a=0,x,y,z;
  cin>>x
  for(int i=0;i<x;i++){
    cin>>y>>z;
    a+=z-y+1;
  }
  cout<<a<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: expected ';' before 'for'
    6 |   cin>>x
      |         ^
      |         ;
    7 |   for(int i=0;i<x;i++){
      |   ~~~    
a.cc:7:15: error: 'i' was not declared in this scope
    7 |   for(int i=0;i<x;i++){
      |               ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int a=0,x,y,z;
  cin>>x
  for(int i=0; i<x; i++){
    cin>>y>>z;
    a+=z-y+1;
  }
  cout<<a<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: expected ';' before 'for'
    6 |   cin>>x
      |         ^
      |         ;
    7 |   for(int i=0; i<x; i++){
      |   ~~~    
a.cc:7:16: error: 'i' was not declared in this scope
    7 |   for(int i=0; i<x; i++){
      |                ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N;
  cin >> N ;
  
  int cnt = 0;
  for (int i = 0; i< N ; i++){
   int s, e;
    cin >> s >> e;
    cnt += (e-s+1)
  }
  cout << cnt << endl;
 
  // ここにプログラムを追記
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: expected ';' before '}' token
   12 |     cnt += (e-s+1)
      |                   ^
      |                   ;
   13 |   }
      |   ~
Language: C++

include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  int a,b;
  int answer = 0;
  
  for(int i = 0; i<N; i++){
    cin >> a >> b;
    answer += b - a + 1;
  }
  
  cout << answer << endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> N;
      |   ^~~
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << answer << endl;
      |   ^~~~
a.cc:15:21: error: 'endl' was not declared in this scope
   15 |   cout << answer << endl;
      |                     ^~~~