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

include <iostream>
using namespace std;

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


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> a >> b;
      |   ^~~
a.cc:11:3: error: 'cout' was not declared in this scope
   11 |   cout << sum-b << endl;
      |   ^~~~
a.cc:11:20: error: 'endl' was not declared in this scope
   11 |   cout << sum-b << endl;
      |                    ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

long long solve(long long freq);

int main(){
  long long a,b;
  cin >> a >> b;
  if(max(solve(a)-a,solve(b)-b) <= 0) cout << "1" <<'\n";
  else cout << max(solve(a)-a,solve(b)-b) <<'\n';
  return 0;
}
  
long long solve(long long freq){
  long long n=1,sum=0;
  while(sum<freq){
    sum += n;
    n++;
  }
  return sum;
}

Compiler output:
a.cc:10:53: warning: missing terminating ' character
   10 |   if(max(solve(a)-a,solve(b)-b) <= 0) cout << "1" <<'\n";
      |                                                     ^
a.cc:10:53: error: missing terminating ' character
   10 |   if(max(solve(a)-a,solve(b)-b) <= 0) cout << "1" <<'\n";
      |                                                     ^~~~~
a.cc: In function 'int main()':
a.cc:11:3: error: expected primary-expression before 'else'
   11 |   else cout << max(solve(a)-a,solve(b)-b) <<'\n';
      |   ^~~~
Language: C++

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

int main(){
  int A,B;
  vector<int> vec(999);
  cin>>A>>B;
  vec.at(0)=1;
  for(int i=1;i<999;i++)
    vec.at(i)+=vec.at(i-1)+(i+1);
  
  int sa = B-A;
  
  cout<<B-vec.at(sa)<<endl;
}

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

#include<iostream>
using namespaces std;
int main()
{
  int a, b;
  cin >> a >> b;
  int c = 0;
  int p[999];
  for(int i=1; i<1000; i++){
    c = c + i;
    p[i] = c;
  }
  for(int j=1; j<1000; j++){
    if(b-a == j){
      cout << p[j] - b;
    }
  }
  return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespaces'
    2 | using namespaces std;
      |       ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> a >> b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:15:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   15 |       cout << p[j] - b;
      |       ^~~~
      |       std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

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

int main() {
	int a,b; cin >>a>>b;
	int k = b-a;
	cout << k(k+1)/2 - a << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: 'k' cannot be used as a function
    7 |         cout << k(k+1)/2 - a << endl;
      |                 ~^~~~~
Language: C++

#include<bits/stdc++.h>
#define LL long long
#define Max 100005
#define Mod 1e9+7
const LL mod=1e9+7;
const LL inf=0x3f3f3f3f;
using namespace std;
int sum[1001];
int main()
{
    for(int i=1;i<=1000;i++)
        sum[i]=i+sum[i-1];
    int a,b;
    scanf("%d%d",&a,&b);
    int t=0;
    while(sum[t]<a)
        t++;
    printf("%d\n",min(sum[t]-a),sum[t+1]-b);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:22: error: no matching function for call to 'min(int)'
   18 |     printf("%d\n",min(sum[t]-a),sum[t+1]-b);
      |                   ~~~^~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 1 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   template argument deduction/substitution failed:
a.cc:18:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |     printf("%d\n",min(sum[t]-a),sum[t+1]-b);
      |                   ~~~^~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   candidate expects 2 arguments, 1 provided
Language: C++

a,b = map(int,input().split())

tmp = 0
for i in  range(1,b-a):
    tmp += i;
print(tmp-a)


Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a,b = map(int,input().split())
      | ^
a.cc:6:6: error: expected constructor, destructor, or type conversion before '(' token
    6 | print(tmp-a)
      |      ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int a,b,s=0;
  cin>>a>>b;
  rep(i,0,abs(a-b)) s+=i;
  cout<<s-b;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: 'i' was not declared in this scope
    6 |   rep(i,0,abs(a-b)) s+=i;
      |       ^
a.cc:6:3: error: 'rep' was not declared in this scope
    6 |   rep(i,0,abs(a-b)) s+=i;
      |   ^~~
Language: C++

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

int main()
{
    vector<int> sum(1000);
    sum.at(0)=0;
    for(int i=1;i<1000;i++){
        sum.at(i)=sum.at(i-1)+i;
    }
    int a,b;
    cout << sum.at(b-a)-b << endl;
    return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespase'
    2 | using namespase std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'vector' was not declared in this scope
    6 |     vector<int> sum(1000);
      |     ^~~~~~
a.cc:6:5: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:6:12: error: expected primary-expression before 'int'
    6 |     vector<int> sum(1000);
      |            ^~~
a.cc:7:5: error: 'sum' was not declared in this scope
    7 |     sum.at(0)=0;
      |     ^~~
a.cc:12:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |     cout << sum.at(b-a)-b << endl;
      |     ^~~~
      |     std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |     cout << sum.at(b-a)-b << endl;
      |                              ^~~~
      |                              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <bits/stdc++.h>


int main()
{
    vector<int> sum(1000);
    sum.at(0)=0;
    for(int i=1;i<1000;i++){
        sum.at(i)=sum.at(i-1)+i;
    }
    int a,b;
    cout << sum.at(b-a)-b << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'vector' was not declared in this scope
    6 |     vector<int> sum(1000);
      |     ^~~~~~
a.cc:6:5: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:6:12: error: expected primary-expression before 'int'
    6 |     vector<int> sum(1000);
      |            ^~~
a.cc:7:5: error: 'sum' was not declared in this scope
    7 |     sum.at(0)=0;
      |     ^~~
a.cc:12:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |     cout << sum.at(b-a)-b << endl;
      |     ^~~~
      |     std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |     cout << sum.at(b-a)-b << endl;
      |                              ^~~~
      |                              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <fstream>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include <string>
#include <tuple>
#include <vector>
#include <map>
#include <list>
#include <set>
#include <stack>
#include <queue>
#include <cstdlib>
#include <algorithm>
#include <random>
#include <cassert>
using namespace std;
#define LL long long
#define MP(a, b) make_pair(a, b)
#define MMP(a, b, c) make_pair(make_pair(a, b), c)
#define MAX 1000000000
#undef INT_MIN
#undef INT_MAX
#define INT_MIN -2147483648
#define INT_MAX 2147483647
#define LL_MIN -9223372036854775808
#define LL_MAX 9223372036854775807
#define PI 3.14159265359

int main(){
    iostream::sync_with_stdio(false);

    int a,b;
    cin >> a >> b;
    int d = b - a;
    int tmp = 0;
    for(int i=1; i<d; i++) tmp += i;
    cout << i - a << endl;
    
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:13: error: 'i' was not declared in this scope
   39 |     cout << i - a << endl;
      |             ^
Language: C

#include <iostream>
using namespace std;

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


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

#include <iosteam>
using namespace std;

int main(){
  int tawar[1000] = {0};
  int a, b;
  int x;
  cin >> a >> b;
  
  for ( int i = 1; i < 1000; i++ ){
    tawar[i] = tawar[i - 1] + i;
  }
  
  x = tawar[b - a] - b;
  cout << x << endl;
}

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

#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <algorithm>
#include <cmath>
#include<climits>
#include <string>
#include <map>
#include <set>
#include <list>

#define ll long long
#define fornum(A,B,C) for(A=B;A<C;A++)

using namespace std;

/////////////////////////////////////////////////////

int a,b;
int l, r;
int i,j;
int main(){
    scanf("%d%d",&a,&b);
    l = 0;
    fornum (i,1,1000){
        l += i;
        if(l<=a)
            continue;
        if(a+i+1==b){
            printf("%d", l-a);
            return;
        }
    }

        return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:13: error: return-statement with no value, in function returning 'int' [-fpermissive]
   32 |             return;
      |             ^~~~~~
Language: C++

#include<bits/stdc++.h>
#include<vector>
using namespace std;
int a, b;
int main(){
  cin >> a >> b;

  vector<int> height = 0;
  for(int i = 1; i < 1000; ++i){
    height.push_back(i);
    for(int x = 1; x < 1000; ++x){
      if(height[i] - x == a && height[i+1] -x == b){
        cout << x << endl;
      }
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:24: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
    8 |   vector<int> height = 0;
      |                        ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
	int main() {
		int a, b;
		cin >> a >> b;
		int x = b - a;
		int height = 0;

		for (i = 1; i <= x; i++) {
			height += i;
		}
		int ans = height - a;
		cout << ans << endl;
		
		}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: 'i' was not declared in this scope
    9 |                 for (i = 1; i <= x; i++) {
      |                      ^
Language: C++

#include<bits/stdc++.h>
	int main() {
		int a, b;
		cin >> a >> b;
		int x = b - a;
		int height = 0;

		for (i = 1; i <= x; i++) {
			height += i;
		}
		int ans = height - a;
		cout << ans << endl;
		
		}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:17: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |                 cin >> a >> b;
      |                 ^~~
      |                 std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:8:22: error: 'i' was not declared in this scope
    8 |                 for (i = 1; i <= x; i++) {
      |                      ^
a.cc:12:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |                 cout << ans << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:32: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |                 cout << ans << endl;
      |                                ^~~~
      |                                std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include "pch.h"
#include <iostream>
using namespace std;
int main(){
	int a, b;
	cin >> a >> b;
	int ta = b - a;
	int iwa = (ta*(ta + 1) / 2 - b);
	cout << iwa << endl;
	return 0;
}

Compiler output:
a.cc:1:10: fatal error: pch.h: No such file or directory
    1 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int difference = b - a;
		int c = 0;
		for(int i = 1; i <= defference; i++){
			c += i;
		}
		System.out.println(c - b);
	
	}
}

Compiler output:
Main.java:9: error: cannot find symbol
		for(int i = 1; i <= defference; i++){
		                    ^
  symbol:   variable defference
  location: class Main
1 error
Language: C++

#include"pch.h"
#include <iostream>
using namespace std;
int main() {
	int a, b;
	cin >> a >> b;
	int ta = b - a;
	cout << ta * (ta + 1) / 2 - b << endl;
	return 0;
}
    


Compiler output:
a.cc:1:9: fatal error: pch.h: No such file or directory
    1 | #include"pch.h"
      |         ^~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#define FOR(i, n) for(int i = 0;i <n;i++)
#define RFOR(i, n) for(int i = n;i >= 0;i--)
#define REP(i, m, n) for(int i = m;i < n;i++)
#define RREP(i, m, n) for(int i = m;i >= n;i--)
#define INF 999999999

using namespace std;
int main(int argc, char const *argv[])
{
 int a,b,i=0,n=0;
 cin >>a>>b;
 a = b - a;
 while(i != a)
 {
   i++;
   n +=i;
 }a
 n = n - b;
 cout<<n<<endl;

return 0;

}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:18:4: error: expected ';' before 'n'
   18 |  }a
      |    ^
      |    ;
   19 |  n = n - b;
      |  ~
Language: C++

#include <bits/stdc++.h>
#define FOR(i, n) for(int i = 0;i <n;i++)
#define RFOR(i, n) for(int i = n;i >= 0;i--)
#define REP(i, m, n) for(int i = m;i < n;i++)
#define RREP(i, m, n) for(int i = m;i >= n;i--)
#define INF 999999999

using namespace std;
int main(int argc, char const *argv[])
{
 int a,b,i=0,n=0;
 cin >>a>>b;
 a = b - a;
 while(i != a)
 {
   i++;
   n +=i;
 }a
 n -= b;
 cout<<n<<endl;

return 0;

}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:18:4: error: expected ';' before 'n'
   18 |  }a
      |    ^
      |    ;
   19 |  n -= b;
      |  ~
Language: C++

int main() {
	int a, b;
	scanf("%d %d", &a, &b);
	int x = b - a;
	x = x * (1 + x) / 2 - b;
	printf("%d", x);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:9: error: 'scanf' was not declared in this scope
    3 |         scanf("%d %d", &a, &b);
      |         ^~~~~
a.cc:6:9: error: 'printf' was not declared in this scope
    6 |         printf("%d", x);
      |         ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main() {
Language: C++

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <cmath>

using namespace std;

int main() {
	int a, b, c, d;
	
	scanf_s("%d %d", &a, &b);

	c = b - a;

	d = 0;
	for (int i = 1; i < c + 1; ++i) {
		d += i;
	}

	printf("%d\n", d - b);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   13 |         scanf_s("%d %d", &a, &b);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<iostream>
using namespace std;

int main(){
  int a, b;
  cin >> a >> b;
  ans = (b-a)*(b-a+1)/2-b;
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
    7 |   ans = (b-a)*(b-a+1)/2-b;
      |   ^~~
      |   abs
Language: C++

#include <iostream>
using namespace std;
#define N 1010
 
int main(){
  int A[N];
  int cnt=0;
  A[0]=0;
  for (int i=1; i<1000; i++){
    cnt += i;
    A[i] = cnt;
  }
 
  int a, b;
  cin >> a >> b;
  int c = b - a;
  cout << A[c]-b << endl;
}
#include <iostream>
using namespace std;
#define N 1010

int main(){
  int A[N];
  int cnt=0;
  A[0]=0;
  for (int i=1; i<1000; i++){
    cnt += i;
    A[i] = cnt;
  }

  int a, b;
  cin >> a >> b;
  int c = b - a;
  cout << A[c]-b << endl;
}

Compiler output:
a.cc:23:5: error: redefinition of 'int main()'
   23 | int main(){
      |     ^~~~
a.cc:5:5: note: 'int main()' previously defined here
    5 | int main(){
      |     ^~~~
Language: C++

#include <iostream>
using namespace std;

int main(void){
  int a, b;

  cin >> a >> b;

  int m = b-a, n = 0;

  for(int i = 1; i <= m; i ++) n += i;

  cout << i-b << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:11: error: 'i' was not declared in this scope
   13 |   cout << i-b << endl;
      |           ^
Language: Java


	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int n[] = new int[20000];
		 n[0] = 1;
		for(int i=1;i<=1000;i++) {
			n[i]=n[i-1]+i+1;
		}
		for(int j=0;j<1000;j++) {
			if(n[j+1]-n[j]==b-a) {
				System.out.println(n[j]-a);
			}
		}


Compiler output:
Main.java:2: error: unnamed classes are a preview feature and are disabled by default.
	public static void main(String[] args) {
	              ^
  (use --enable-preview to enable unnamed classes)
Main.java:16: error: reached end of file while parsing
		}
		 ^
2 errors
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: expected '}' at end of input
   12 |   sum -= b;
      |            ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

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

int main()
{
	ios::sync_with_stdio(false), cin.tie(0);
	int a, b;
	cin >> a >> b;
	int c = b - d;
	cout << (c * (c + 1) / 2 - b) << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 'd' was not declared in this scope
    9 |         int c = b - d;
      |                     ^
Language: C++

#inclide<iostream>
using namespace std;
int main(){
int a,b;
cin>>a>>b;
int c=a*a/2-a*b+b*b/2-a/2+b/2;
cout<<c-b<<endl;
return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inclide; did you mean #include?
    1 | #inclide<iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:1: error: 'cin' was not declared in this scope
    5 | cin>>a>>b;
      | ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #inclide<iostream>
a.cc:7:1: error: 'cout' was not declared in this scope
    7 | cout<<c-b<<endl;
      | ^~~~
a.cc:7:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:7:12: error: 'endl' was not declared in this scope
    7 | cout<<c-b<<endl;
      |            ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #inclide<iostream>
Language: Java


import java.util.Scanner;

public class Stone {

	public static void main(String args[]) {
		Scanner in = new Scanner(System.in);
		long a = in.nextLong();
		long b = in.nextLong();
		System.out.println((b-a)*(b-a+1)/2-b);
	}
	
}


Compiler output:
Main.java:4: error: class Stone is public, should be declared in a file named Stone.java
public class Stone {
       ^
1 error
Language: C++

#include <iostream>
#include <math.h>
#include <algorithm>
#include <vector>
#include <numeric>
#include <string>
using namespace std;
const double PI = acos(-1.0);
const string alp = "abcdefghijklmnopqrstuvwxyz";
const string ALP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define REP1(i,n) FOR(i,1,n+1)
#define SUM(c) accumulate((c).begin(),(c).end(),0)
#define UNIQ(c) (c).erase(unique((c).begin(), (c).end()), (c).end());
#define Yn(b) puts(b?"Yes":"No")
#define YN(b) puts(b?"YES":"NO")
 
bool isprime(int p) {
  if (p==1) return false;
  FOR(i,2,p) {
    if (p%i==0) return false;
  }
  return true;
}

int main(){
  int a,b;
  cin >> a >> b;
  cout << (b-a)(b-a+1)/2-a;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:16: error: expression cannot be used as a function
   32 |   cout << (b-a)(b-a+1)/2-a;
      |           ~~~~~^~~~~~~
Language: C

    #include <stdio.h>
    int main(void){
    int a,b,c,d,e,i;
    scanf("%d %d\n",&a,&b);
    c = b - a;
    d = 0;
    for(int i = 1;i <= c;i++){
    d = d + i;
    }
    e = d - a;
    printf("%d\n",e);

Compiler output:
main.c: In function 'main':
main.c:11:5: error: expected declaration or statement at end of input
   11 |     printf("%d\n",e);
      |     ^~~~~~
Language: C

#include <stdio.h>
int main(void){
int a,b,c,d,e,i;
scanf("%d %d\n",&a);
c = b - a;
d = 0;
for(int i = 1;i <= c;i++){
d = d + i;
}
e = d - a;
printf("%d\n",e);

Compiler output:
main.c: In function 'main':
main.c:11:1: error: expected declaration or statement at end of input
   11 | printf("%d\n",e);
      | ^~~~~~
Language: C

# include < cstdio >
int A , B ;
int main ()
{
scanf ("% d % d " ,&A ,& B );
printf ("% d \ n " ,(B - A )*( B - A +1)/2 - B );
}


Compiler output:
main.c:1:11: fatal error:  cstdio : No such file or directory
    1 | # include < cstdio >
      |           ^~~~~~~~~~
compilation terminated.
Language: C++

# include < cstdio >
int A , B ;
int main ()
{
scanf ("% d % d " ,&A ,& B );
printf ("% d \ n " ,(B - A )*( B - A +1)/2 - B );
}


Compiler output:
a.cc:1:11: fatal error:  cstdio : No such file or directory
    1 | # include < cstdio >
      |           ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int main()
{int a,b;
 Scanf("%d %d",&a &b);
  int j=0;
int i=0;
for(i=1;i<=b-a;i++)
{ j=j+i;}
printf("%d",j-b);}
  







Compiler output:
main.c: In function 'main':
main.c:4:2: error: implicit declaration of function 'Scanf'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |  Scanf("%d %d",&a &b);
      |  ^~~~~
      |  scanf
main.c:4:19: error: invalid operands to binary & (have 'int *' and 'int')
    4 |  Scanf("%d %d",&a &b);
      |                ~~ ^
      |                |
      |                int *
Language: C

#include<stdio.h>
int main()
{int a,b;
 Scanf("%d %d",&a &b);
  int j=0;
int i=0;
for(i=1;i<=a-b;i++)
{ j=j+i;}
printf("%d",j-b);}
  







Compiler output:
main.c: In function 'main':
main.c:4:2: error: implicit declaration of function 'Scanf'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |  Scanf("%d %d",&a &b);
      |  ^~~~~
      |  scanf
main.c:4:19: error: invalid operands to binary & (have 'int *' and 'int')
    4 |  Scanf("%d %d",&a &b);
      |                ~~ ^
      |                |
      |                int *
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,k;
    scanf("%d %d",&n,&k);
    int i;
    int dp[1020];
    dp[1] = 1;
    dp[2] = 3;
    for(i=3;i<=999;i++)
    {
        dp[i] = dp[i-1] + i;
    }
    for(i=1;i<999;i++)
    {
        if(dp[i] - n == dp[i+1] - k){}
            printf("%d\n",dp[i] - n);
            break;
        }
    }
    return 0;
}


Compiler output:
a.cc:22:5: error: expected unqualified-id before 'return'
   22 |     return 0;
      |     ^~~~~~
a.cc:23:1: error: expected declaration before '}' token
   23 | }
      | ^
Language: C

#include<stdio.h>

int main(void){
	int a,b,c,a1 = 0;
	scanf("%d",&a);
	scanf("%d",&b);

	c = b - a;

	for(i = 1;i = c-1;c++){
		a1 = a1 + i;
	}

	printf("%d",a1 - a);


	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:13: error: 'i' undeclared (first use in this function)
   10 |         for(i = 1;i = c-1;c++){
      |             ^
main.c:10:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

port java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int a = sc.nextInt();
        int b = sc.nextInt();

        int ans = solve2(a, b);
        System.out.println(ans);
    }

    private static int solve(int a, int b) {
        int d = b - a;
        int sum = 0;

        for (int i=1; i<d; i++) {
            sum += i;
        }

        return sum - a;
    }

    private static int solve2(int a, int b) {
        int d = b-a;

        return d*(d-1)/2;
    }
}


Compiler output:
a.cc:1:1: error: 'port' does not name a type
    1 | port java.util.Scanner;
      | ^~~~
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: Java

    import java.util.Scanner;
     
    public class Main{
        public static void main (String[] args){
             Scanner input = new Scanner(System.in);
           
             while(input.hasNext()){
                  int a = input.nextInt();
                  int b = input.nextInt();
                  int towerID = b - a;
                  int bHeight = ((towerID + 1) * towerID) / 2;
                  int x = bHeight - b;
                  
                  System.out,.println(x);
             }
        }
    }

Compiler output:
Main.java:14: error: not a statement
                  System.out,.println(x);
                        ^
Main.java:14: error: ';' expected
                  System.out,.println(x);
                            ^
2 errors
Language: Java

    import java.util.Scanner;
     
    public class Main{
        public static void main (String[] args){
             Scanner input = new Scanner(System.in);
           
             while(input.hasNext()){
                  int a = input.nextInt();
                  int b = input.nextInt();
                  int towerID = b - a;
                  int bHeight = ((towerID + 1) * towerId) / 2;
                  int x = bHeight - b;
                  
                  System.out.println(x);
             }
        }
    }

Compiler output:
Main.java:11: error: cannot find symbol
                  int bHeight = ((towerID + 1) * towerId) / 2;
                                                 ^
  symbol:   variable towerId
  location: class Main
1 error
Language: Java

import java.util.Scanner;

public class Main{
    public static void main (String[] args){
         Scanner input = new Scanner(System.in);
       
         while(input.hasNext()){
              int a = input.nextInt();
              int b = input.nextInt();
              int towerID = b - a;
              int bHeight = ((towerID + 1) * towerId) / 2;
              int x = bHeight - b;
              
              System.out,.println(x);
         }
    }
}

Compiler output:
Main.java:14: error: not a statement
              System.out,.println(x);
                    ^
Main.java:14: error: ';' expected
              System.out,.println(x);
                        ^
2 errors
Language: C++

#include <iostream>
using namespace std ;

int main(void)
{
	int a, b ;
	cin >> a b ;

	if (a >= b || a < 1 && a >= 499500 || b < 1 && b >= 499500) {
		cout << "error\n" ;
		return -1 ;
	}

	int diff = b - a ; // diffの値が東側の塔の本数。N本目
	int meter = 0 ;

	for (int i = 1; i < diff-1; i++)
		meter += meter + i ;

	cout << meter + "\n" ;

	return 0 ;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:17: error: expected ';' before 'b'
    7 |         cin >> a b ;
      |                 ^~
      |                 ;
Language: C++

#include <iostream>


int a, b, c = 0, d = 0, e = 0, g;
int  max1[999], m1[999], max2[999], m2[999], f = 1000000000, kekka;
bool End = false;
int main()
{
	std::cin >> a >> b;
	for(int i = 1; i <= 999; i++)
	{
		c += i;
		if(a < c)
		{
			d += 1;
			m1[d] = d;
			max1[d] = c - a;
		}

		if(b < c)
		{
			e += 1;
			m2[e] = e;
			max2[e] = c - b;
		}
	}
	for(int i = 1; i <= d; i++)
	{
		for(int j = 1; j <= e; j++)
		{
			if(max1[i] == max2[j])
			{
				g = m2[j] - m1[i];
				if(g < f)
				{
					kekka = max1[i];
				}
			}
	}
	std::cout << kekka << std::endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:41:2: error: expected '}' at end of input
   41 | }
      |  ^
a.cc:8:1: note: to match this '{'
    8 | {
      | ^
Language: Java

import java.util.Scanner;
public class Main{
  public static int r1(c){
    if(c == 1)
      return 1;
    else
      return c + r1(c - 1);
  }
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = b - a;  // b は c 本目だとわかる
    int hight = r1(c);  // 棒の高さは hight
    System.out.println(hight - b);
  }
}

Compiler output:
Main.java:3: error: <identifier> expected
  public static int r1(c){
                        ^
1 error
Language: C

#include<stdio.h>
int mAin(){
	int a,b;
	scanf("%d %d",&a,&b);
	printf("%d\n",(b-a)*(b-a+1)/2-b);
	return 0;
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <cmath>
#include <string>
#define FI first
#define SE second
#define PF push_front
#define PB push_back
#define PPF pop_front
#define PPB pop_back
#define MA make_pair
#define ll long long
#define PA pair<int,int>
#define VE vector<int>
#define VP vector<PA>
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define ROF(i,a,b) for(int i=b-1;i>=a;i--)
#define YES(i) cout<<(i?"YES":"NO")<<endl
#define Yes(i) cout<<(i?"Yes":"No")<<endl
using namespace std;
//
const int INF=1e9+7;
const int mod=1e9+7;
//
struct pol{
  int X;int Y;int Z;
  bool operator<(const poi&R)const{
    return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
  }
};
/*
ll GCD(ll A,ll B){
  return (B==0)?(A):(GCD(B,A%B));
}
ll LCM(ll A,ll B){
  return A/GCD(A,B)*B;
}
*/
int main(){
  int a,b;
  cin>>a>>b;
  int s=0;
  FOR(i,1,b-a+1){
    s+=i;
  }
  cout<<s-a<<endl;
  return 0;
}

Compiler output:
a.cc:30:24: error: 'poi' does not name a type; did you mean 'pol'?
   30 |   bool operator<(const poi&R)const{
      |                        ^~~
      |                        pol
a.cc: In member function 'bool pol::operator<(const int&) const':
a.cc:31:17: error: request for member 'X' in 'R', which is of non-class type 'const int'
   31 |     return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
      |                 ^
a.cc:31:26: error: request for member 'Y' in 'R', which is of non-class type 'const int'
   31 |     return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
      |                          ^
a.cc:31:34: error: request for member 'Z' in 'R', which is of non-class type 'const int'
   31 |     return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
      |                                  ^
a.cc:31:42: error: request for member 'Y' in 'R', which is of non-class type 'const int'
   31 |     return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
      |                                          ^
a.cc:31:50: error: request for member 'X' in 'R', which is of non-class type 'const int'
   31 |     return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
      |                                                  ^
Language: C++

#include <iostream>
using namespace std;
int main(){
  int a,b,xx;
  cin >> a >> b;
int c=b-a;
for(int i=1;i<=c;i++){
  x+=i;
}
  cout << x-b << endl;
  return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'x' was not declared in this scope
    8 |   x+=i;
      |   ^
a.cc:10:11: error: 'x' was not declared in this scope
   10 |   cout << x-b << endl;
      |           ^
Language: C++

#incldue <iostream>
using namespace std;
int main()
{
  	int a,b;
  cin >>a>>b;
  int n = b-a;
  int ans=0;
  for(int i=1;i<n;i++)ans+=i;
  
  cout <<ans-a;
  return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >>a>>b;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incldue <iostream>
a.cc:11:3: error: 'cout' was not declared in this scope
   11 |   cout <<ans-a;
      |   ^~~~
a.cc:11:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C

#include<stdio.h>
int main(){
 int x,y;
  int res;
  scanf("%d%d",&x,&y);
  int sum=0;
  
  for(int i=1;i<999;i++){
    sum+=i;
    if(sum-x=sum-y+1+i){
      
     res=sum-x; 
    }
  }
	printf("%d\n",res);






return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:13: error: lvalue required as left operand of assignment
   10 |     if(sum-x=sum-y+1+i){
      |             ^
Language: C

#include<stdio.h>
int main()
{
    lnt a,b,s=0,c1,i;
    scanf("%d %d",&a,&b);
    for(i=1;i<1000;i++)
    {
        s+=i;
        if(s>a&&s<b)
        {
           c1=s-a;
        }
    }
    printf("%d\n",c1);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:5: error: unknown type name 'lnt'; did you mean 'int'?
    4 |     lnt a,b,s=0,c1,i;
      |     ^~~
      |     int
Language: C

# include < cstdio >
typedef long long ll ;
int A , B ;
int main ()
{
scanf ("% d % d " ,&A ,& B );
printf ("% d \ n " ,(B - A )*( B - A +1)/2 - B );
}


Compiler output:
main.c:1:11: fatal error:  cstdio : No such file or directory
    1 | # include < cstdio >
      |           ^~~~~~~~~~
compilation terminated.
Language: C

a,b=map(int,input().split())
num=b-a
sum=(num*(num+1))//2
print(sum-b)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | a,b=map(int,input().split())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
main.c:1:3: error: type defaults to 'int' in declaration of 'b' [-Wimplicit-int]
    1 | a,b=map(int,input().split())
      |   ^
main.c:1:5: error: implicit declaration of function 'map' [-Wimplicit-function-declaration]
    1 | a,b=map(int,input().split())
      |     ^~~
main.c:1:9: error: expected expression before 'int'
    1 | a,b=map(int,input().split())
      |         ^~~
main.c:2:1: error: expected ',' or ';' before 'num'
    2 | num=b-a
      | ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int i = 0; i < n; i++)
typedef long long ll;

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

    ll a, b;
    cin >> a >> b;

    map<ll, ll> mp;
    ll idx = 1, r = 3, j = 2;
    while(r < 499500){
        mp[idx] = r;
        idx += j;
        j++;
        r += j;
    }

    REP(i, 100000){
        ll aa = a + i;
        llbb = b + i;
        if(mp[aa] == bb){
            cout << i << endl;
            return 0;
        }
    }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: 'llbb' was not declared in this scope
   24 |         llbb = b + i;
      |         ^~~~
a.cc:25:22: error: 'bb' was not declared in this scope; did you mean 'b'?
   25 |         if(mp[aa] == bb){
      |                      ^~
      |                      b
Language: C++

#include "bits/stdc++.h"
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	int heighta, heightb;
	int i=1;
	int j=1;
	while(a>=heighta){
		heighta += i;
		i++;
	}

	while(b>=heightb){
		heightb += j;
		j++;
	}
	int ansa = heighta - a;
	int ansb = heightb - b;
	if(ansa == ansb) cout<< ans <<endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:33: error: 'ans' was not declared in this scope; did you mean 'ansb'?
   20 |         if(ansa == ansb) cout<< ans <<endl;
      |                                 ^~~
      |                                 ansb
Language: C++

#include "bits/stdc++.h"
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	int height;
	int i=1;
	int j=1;
	while(a>=heighta){
		heighta += i;
		i++;
	}

	while(b>=heightb){
		heightb += j;
		j++;
	}
	int ansa = heighta - a;
	int ansb = heightb - b;
	if(ansa == ansb) cout<< ans <<endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: 'heighta' was not declared in this scope; did you mean 'height'?
    9 |         while(a>=heighta){
      |                  ^~~~~~~
      |                  height
a.cc:14:18: error: 'heightb' was not declared in this scope; did you mean 'height'?
   14 |         while(b>=heightb){
      |                  ^~~~~~~
      |                  height
a.cc:18:20: error: 'heighta' was not declared in this scope; did you mean 'height'?
   18 |         int ansa = heighta - a;
      |                    ^~~~~~~
      |                    height
a.cc:19:20: error: 'heightb' was not declared in this scope; did you mean 'height'?
   19 |         int ansb = heightb - b;
      |                    ^~~~~~~
      |                    height
a.cc:20:33: error: 'ans' was not declared in this scope; did you mean 'ansb'?
   20 |         if(ansa == ansb) cout<< ans <<endl;
      |                                 ^~~
      |                                 ansb
Language: C++

#include<stdio.h>
int main(void) {
	int a,b,x,i,sum=0;
	scanf_s("%d %d", &a,&b);
	x = b - a ;
	for (i=0;i<=x ;i = i++) {
		sum = sum +i;
	}
			printf("%d\n", sum-b );
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    4 |         scanf_s("%d %d", &a,&b);
      |         ^~~~~~~
      |         scanf
Language: C++

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

class Jud
{
public:
    int a1=0;
    int calc(int n){

    for(int i=1;i<n+1;i++){
    a1+=i
    }
    return a1;
    }
        
};
void solve(){
    Jud jud;
    int a,b,c,ori,ans;
    cin>>a>>b;
    c=b-a;
    ori=jud.calc(c);
    ans=ori-b;
    cout<<ans<<endl;
}

int main(){
    solve();
    return 0;
}

Compiler output:
a.cc: In member function 'int Jud::calc(int)':
a.cc:12:5: error: expected ';' before '}' token
   12 |     }
      |     ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x,y,u;
cin>>a>>b;
int furagu[998];
for(y=0;y<1000;y++){
int furagu[y];
int dey[998];
for(u=0;u<1000;u++){
int dey[u];
int i;
if(y=u){
i=i+furagu[y];
i=dey[u];
}
}
}
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:1: error: 'dey' was not declared in this scope
   20 | dey[o]=a+x;
      | ^~~
Language: C++

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

int pre[1005];

int main(){
	pre[0] = 0;
	for (int i = 1; i <= 1000; ++i){
		pre[i] = pre[i-1] + i;
	}
	int a,b; scanf("%d%d",&a,&b);
	printf("%d\n",pre[b-a] - b)
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:36: error: expected ';' before '}' token
   12 |         printf("%d\n",pre[b-a] - b)
      |                                    ^
      |                                    ;
   13 | }
      | ~
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
int dey[998];
for(int u=0;u<1000;u++)cin>>dey[u];
int i;
if(u=y){
i=i+furagu[y];
i=dey[u];
}
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:4: error: 'u' was not declared in this scope
   12 | if(u=y){
      |    ^
a.cc:12:6: error: 'y' was not declared in this scope
   12 | if(u=y){
      |      ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
int dey[998];
for(int u=0;u<1000;u++)cin>>dey[u];
int i;
u=y;
i=i+furagu[y];
i=dey[u];
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:1: error: 'u' was not declared in this scope
   12 | u=y;
      | ^
a.cc:12:3: error: 'y' was not declared in this scope
   12 | u=y;
      |   ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
int dey[998];
for(int u=0;u<1000;u++)cin>>dey[u];
int i;
i=i+furagu[y];
i=dey[u];
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: 'y' was not declared in this scope
   12 | i=i+furagu[y];
      |            ^
a.cc:13:7: error: 'u' was not declared in this scope
   13 | i=dey[u];
      |       ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
int dey[998];
for(int u=0;u<1000;u++)cin>>dey[u];
int i;
i=i+furagu[y];
dey[u]=i;
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: 'y' was not declared in this scope
   12 | i=i+furagu[y];
      |            ^
a.cc:13:5: error: 'u' was not declared in this scope
   13 | dey[u]=i;
      |     ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
int dey[998];
for(y=0;y<1000;y++)cin>>dey[y];
int z,i;
z=furagu[y];
i=i+furagu[y];
dey[y]=i;
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'y' was not declared in this scope
   10 | for(y=0;y<1000;y++)cin>>dey[y];
      |     ^
a.cc:12:10: error: 'y' was not declared in this scope
   12 | z=furagu[y];
      |          ^
Language: C++

#include<iostream>
using namespace std;

int main(){
int a,b,o,x;
cin>>a>>b;
int furagu[998];
for(int y=0;y<1000;y++)cin>>furagu[y];
for(y=0;y<1000;y++)cin>>dey[y];
int dey[998];
int z:
z=furagu[y];
i=i+furagu[y];
dey[y]=i;
dey[o]=a+x;
dey[o+1]=b+x;
cout<<x<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'y' was not declared in this scope
    9 | for(y=0;y<1000;y++)cin>>dey[y];
      |     ^
a.cc:9:25: error: 'dey' was not declared in this scope
    9 | for(y=0;y<1000;y++)cin>>dey[y];
      |                         ^~~
a.cc:11:6: error: found ':' in nested-name-specifier, expected '::'
   11 | int z:
      |      ^
      |      ::
a.cc:11:5: error: 'z' has not been declared
   11 | int z:
      |     ^
a.cc:12:2: error: qualified-id in declaration before '=' token
   12 | z=furagu[y];
      |  ^
a.cc:13:1: error: 'i' was not declared in this scope
   13 | i=i+furagu[y];
      | ^
a.cc:13:12: error: 'y' was not declared in this scope
   13 | i=i+furagu[y];
      |            ^
Language: C++

#include <bits/stdc++.h>

using namespace std;
int main(){
int a,b;
cin>>a>>b;
int sum=0;
for(int i=1;i<1000;i++){
if(i !=(b-a){
     sum+=i;
}else{

}



return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected ';' before '{' token
    9 | if(i !=(b-a){
      |             ^
      |             ;
a.cc:11:2: error: expected primary-expression before 'else'
   11 | }else{
      |  ^~~~
a.cc:11:2: error: expected ')' before 'else'
   11 | }else{
      |  ^~~~
      |  )
a.cc:9:3: note: to match this '('
    9 | if(i !=(b-a){
      |   ^
a.cc:18:2: error: expected '}' at end of input
   18 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^