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

#include <iostream>
#include <numeric>
#include <vector>

int main() {
  int n;
  std::cin >> n;

  std::vector<int> b(n - 1);
  for (auto&& bi : b) std::cin >> bi;

  std::vector<int> a(n, INT_MAX);
  for (int i = 0; i < n - 1; ++i) {
    if (a[i] > b[i]) a[i] = b[i];
    a[i + 1] = b[i];
  }
  const auto sum = std::accumulate(a.begin(), a.end(), 0);
  std::cout << sum << std::endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:25: error: 'INT_MAX' was not declared in this scope
   12 |   std::vector<int> a(n, INT_MAX);
      |                         ^~~~~~~
a.cc:4:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    3 | #include <vector>
  +++ |+#include <climits>
    4 |
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int> B(N-1);
  for(auto& b : B) cin >> b;
  int ans = B[0] + B[ii-2];
  for(int ii=1; ii<N-1; ii++){
    ans += min(B[ii-1], B[ii]);
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: 'ii' was not declared in this scope
    9 |   int ans = B[0] + B[ii-2];
      |                      ^~
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:11:18: error: 'i' was not declared in this scope
   11 |   int sum = b.at(i);
      |                  ^
Language: C++

#include <iostream>
using namespace std ;


int min(int a, int b){
  if(a>b) return b ;
  else return a ;
}

int main(){
  int N , i ,sum=0;
  cin >> N ;
  int A[N],B[N-1] ;
  
  for(i=0;i<N-1;i++){
    cin >> B[i] ;
  }
  
  A[0] = B[0] ;
  A[N-1] = B[N-2] ;
  
  for(i=1;i<N-1;i++){
    A[i] = min(B[i-1],B[i]) ;
  }
  
  for(i=0;i<N;i++){
    sum += A[i]
  }
  
  cout << sum ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:16: error: expected ';' before '}' token
   27 |     sum += A[i]
      |                ^
      |                ;
   28 |   }
      |   ~
Language: C++

#include <iostream>
using namespace std ;


int min(int a, int b){
  if(a>b) return b ;
  else return a ;
}

int main(){
  int N , i;
  cin >> N ;
  int A[N],B[N-1] ;
  
  for(i=0;i<N-1;i++){
    cin >> B[i] ;
  }
  
  A[0] = B[0] ;
  A[N-1] = B[N-2] ;
  
  for(i=1;i<N-1;i++){
    A[i] = min(B[i-1],B[i])
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:28: error: expected ';' before '}' token
   23 |     A[i] = min(B[i-1],B[i])
      |                            ^
      |                            ;
   24 |   }
      |   ~
Language: C++

#include <iostream>
#include <vector>
using namespace std;

int main(void) {
  int n;
  cin >> n;
  vector<int> a(n);
  vector<int> b(n - 1);
  for (int i = 0; i < n - 1; ++i) {
    cin >> b[i];
  }
  for (int i = 0; i < n - 1; ++i) {
    if (i + 1 != n - 1) {
      if (b[i + 1] >= b[i]) {
        if (i == 0) a[i] = b[i];
          a[i + 1] = b[i];
      } else {
        if (i == 0) a[i] = b[i + 1];
        a[i + 1] = b[i + 1];
      }
    }
  }
  a[n - 1] = b[n - 2];
    
  cout << a.sum() << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:13: error: 'class std::vector<int>' has no member named 'sum'
   26 |   cout << a.sum() << endl;
      |             ^~~
Language: C++

def check():
    N = int(input())
    B = [int(i) for i in input().split(' ')]

    total = B[0]
    for i in range(N):
        total += B[i]
    print(total)

check()

Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def check():
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
  
int main(){
  int n;cin>>n;
    vector<int> a(n-1);
    int sum=0;
    for(int i=0;i<n-1;i++)cin>>a[i];
    for(int i=0;i<n-1;i++)sum=sum+a[i];
    cout<<max(sum+a[0]);
}



Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: no matching function for call to 'max(int)'
   10 |     cout<<max(sum+a[0]);
      |           ~~~^~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: 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:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   template argument deduction/substitution failed:
a.cc:10:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   10 |     cout<<max(sum+a[0]);
      |           ~~~^~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include <iostream>
using namespace std;

/*
* int配列の要素をすべて0にする
*/
void all2zero(int *array, int num)
{
    for (int i = 0; i < num; i++)
    {
        array[i] = 0;
    }
}

int main()
{
    int N, sum = 0, now_num, pre_num = INT_MAX;

    cin >> N;
    for (int i = 0; i < N - 1; i++)
    {
        cin >> now_num;
        sum += (now_num < pre_num) ? now_num : pre_num;
        pre_num = now_num;
    }
    sum += now_num;
    cout << sum << endl;
    return EXIT_SUCCESS;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:40: error: 'INT_MAX' was not declared in this scope
   17 |     int N, sum = 0, now_num, pre_num = INT_MAX;
      |                                        ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 | using namespace std;
Language: C++

#include <iostream>
#include <vector>
int main(){
  int n; std::cin >> n;
  std::vector< int > b(n - 1);
  for (auto & x : b) std::cin >> x;
  long long ret = 0;
  ret += b.front();
  ret += std::min(b.at(i), b.at(i + 1));
  ret += b.back();
  std::cout << ret << std::endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:24: error: 'i' was not declared in this scope
    9 |   ret += std::min(b.at(i), b.at(i + 1));
      |                        ^
Language: C

#include <stdio.h>
#include <stdlib.h>
#define MAXN 100

int min(int a, int b)
{
  return a<b?a:b;
}

int main()
{
  int n, b[MAXN], mps = 0, a[MAXN];
 scanf("%d", &n);
  for(int i = 1; i<n; i++)
    scanf("%d", &b[i]);
  b[n] = INT_MAX;
  mps += b[1];
  for(int i = 1; i<=n; i++)
  {
    mps+=min(b[i-1], b[i]);
  }
  printf("%d", mps);
}


Compiler output:
main.c: In function 'main':
main.c:16:10: error: 'INT_MAX' undeclared (first use in this function)
   16 |   b[n] = INT_MAX;
      |          ^~~~~~~
main.c:3:1: note: 'INT_MAX' is defined in header '<limits.h>'; this is probably fixable by adding '#include <limits.h>'
    2 | #include <stdlib.h>
  +++ |+#include <limits.h>
    3 | #define MAXN 100
main.c:16:10: note: each undeclared identifier is reported only once for each function it appears in
   16 |   b[n] = INT_MAX;
      |          ^~~~~~~
Language: C

#include <stdio.h>
#include <stdlib.h>
#define MAXN 100

int min(int a, int b)
{
  return a<b?a:b;
}

int main()
{
  int n, b[MAXN], mps = 0, a[MAXN];
 scanf("%d", &n);
  for(int i = 1; i<n; i++)
    scanf("%d", &b[i]);
  b[n] = MAX_INT;
  mps += b[1];
  for(int i = 1; i<=n; i++)
  {
    mps+=min(b[i-1], b[i]);
  }
  printf("%d", mps);
}


Compiler output:
main.c: In function 'main':
main.c:16:10: error: 'MAX_INT' undeclared (first use in this function); did you mean 'MAXN'?
   16 |   b[n] = MAX_INT;
      |          ^~~~~~~
      |          MAXN
main.c:16:10: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N;
  vector<int> vec(N-1);
  int sum;
  
  cin >> N;
  for(int i=0; i < N-1; i++){
    cin >> vec.at(i);
  }
  
  sum += vec.at(0);
  for(int i; i < N-3, i++){
    sum += min(vec.at(i),vec.at(i+1));
  }
  sum += vec.at(N-2);
  
  cout << sum <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: expected ';' before ')' token
   15 |   for(int i; i < N-3, i++){
      |                          ^
      |                          ;
Language: C

13gergerververevgerfvewrfge
rgergwrgewrgyhtfgewrfgerg
hergregewrgewr
gewr
g
ewrg
erw
gerg
ewr
g
ewrg
ewrg

Compiler output:
main.c:1:1: error: invalid suffix "gergerververevgerfvewrfge" on integer constant
    1 | 13gergerververevgerfvewrfge
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
main.c:1:1: error: expected identifier or '(' before numeric constant
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<int> b(n-1);
  for(int i = 0; i < n-1; i++) {
    cin >> b.at(i);
  }
  vector<int> a(n);
  a.at(0) = b.at(0);
  for(int i = 1; i < n-2; i++) {
    a.at(i) = min(b.at(i), b.at(n-1));
  }
  a.at(n-1) = b.at(n-2);
  int ans = 0;
  for(int i = 0; i < n; i++) {
    ans  += a.at(i);
  }
  cout << ans << andl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: 'andl' was not declared in this scope
   21 |   cout << ans << andl;
      |                  ^~~~
Language: Java

import java.util.Scanner;
public class queue {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		    Scanner sc = new Scanner(System.in);
		    int n = sc.nextInt();
		    int[] b = new int[n+1];
		    for(int i=1;i<n;i++) {
		    	b[i]=sc.nextInt();
		    }
		    b[0]=b[n]=1000000;
		    int ans = 0;
		    for(int i=0;i<n;i++){
		      ans = ans+Math.min(b[i],b[i+1]);
		    }
		    System.out.println(ans);
		  }
		}
		           



Compiler output:
Main.java:2: error: class queue is public, should be declared in a file named queue.java
public class queue {
       ^
1 error
Language: C++

#include <iostream>

using namespace std;

int main(){
  int n;
  cin >> n;
  vector<int> maxBetween(n - 1);
  vector<int> maxPossible(n);
  
  for(auto &i : maxBetween)
    cin >> i;
  
  maxPossible[0] = maxPossible[1] = maxBetween[0];
  
  for(int i = 1; i < n - 1; i++){
    if(maxPossible[i] > maxBetween[i])
      maxPossible[i] = maxBetween[i];
    
    maxPossible[i + 1] = maxBetween[i];
  }
  
  int sum = 0;
  for(auto &i : maxPossible)
    sum += i;
  cout << sum << '\n';
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'vector' was not declared in this scope
    8 |   vector<int> maxBetween(n - 1);
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | 
a.cc:8:10: error: expected primary-expression before 'int'
    8 |   vector<int> maxBetween(n - 1);
      |          ^~~
a.cc:9:10: error: expected primary-expression before 'int'
    9 |   vector<int> maxPossible(n);
      |          ^~~
a.cc:11:17: error: 'maxBetween' was not declared in this scope
   11 |   for(auto &i : maxBetween)
      |                 ^~~~~~~~~~
a.cc:14:3: error: 'maxPossible' was not declared in this scope
   14 |   maxPossible[0] = maxPossible[1] = maxBetween[0];
      |   ^~~~~~~~~~~
a.cc:14:37: error: 'maxBetween' was not declared in this scope
   14 |   maxPossible[0] = maxPossible[1] = maxBetween[0];
      |                                     ^~~~~~~~~~
Language: Java


import java.util.Scanner;

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

		for (int i = 0; i < N-1; i++) {
			A[i] = sc.nextInt();
		}

		int result = A[0];
		for (int i = 0; i < N - 1; i++) {
			result += Math.min(A[i], A[i+1]);
		}

		System.out.println(result + A[N - 2]);
	}
}


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

// I am Varun Das from Jadavpur University
#include <bits/stdc++.h>
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define mod 1000000007
#define ll long long
#define dbg(x) cerr << #x << " = " << x << endl
#define INF LLONG_MAX
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,a,b) for(int i=a;i>=b;i--)
#define nax 503405
using namespace std;

int main() {
#ifdef _DEBUG
	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL);
//cout<<fixed<<setprecision(12);
int n;
  cin >> n;
  int b[n-1];
  for(int i=0;i<n-1;i++)cin >> b[i];
  int res = b[0];
  for(int i = 1;i < n - 1;i++){
    res += min(b[i],b[i-1]);
  }
  res = res + b[n-2];
  cout<<res;
cout<<s;


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:7: error: 's' was not declared in this scope
   33 | cout<<s;
      |       ^
Language: C++

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

int main(){
  
  int n;
  int b[n-1];
  for(int i=0;i<n-1;i++)cin >> b[i];
  int res = b[0];
  for(int i = 1;i < n - 1;i++){
    res += min(b[i],b[i-1]);
  }
  res = res + b[n-1];
  cout<<res;
  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:8:25: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |   for(int i=0;i<n-1;i++)cin >> b[i];
      |                         ^~~
      |                         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:11:12: error: 'min' was not declared in this scope; did you mean 'std::min'?
   11 |     res += min(b[i],b[i-1]);
      |            ^~~
      |            std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:14:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   14 |   cout<<res;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

using namespace std;
#define rep(i,n) for( int i = 0 ; i < n ; i++ )
 
int main(){
  int N, ans = 0 ;
  cin >> N ;
  vector<int> A(N);
  vector<int> B(N-1);
  rep (i,N-1) cin >> B.at(i) ;
  A.at(0) = B.at(0) ; 
  A.at(N-1) = B.at(N-2);
  for(int i = 1; i< N-1 ; i++) A.at(i) = min( B.at(i),B.at(i-1) ) ;
  rep (i,N) ans += A.at(i) ;
  rep (i,N) cout << A.at(i)<< ' ' ;
  cout << endl ;
  cout << ans << endl ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> N ;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:7:3: error: 'vector' was not declared in this scope
    7 |   vector<int> A(N);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | using namespace std;
a.cc:7:10: error: expected primary-expression before 'int'
    7 |   vector<int> A(N);
      |          ^~~
a.cc:8:10: error: expected primary-expression before 'int'
    8 |   vector<int> B(N-1);
      |          ^~~
a.cc:9:22: error: 'B' was not declared in this scope
    9 |   rep (i,N-1) cin >> B.at(i) ;
      |                      ^
a.cc:10:3: error: 'A' was not declared in this scope
   10 |   A.at(0) = B.at(0) ;
      |   ^
a.cc:10:13: error: 'B' was not declared in this scope
   10 |   A.at(0) = B.at(0) ;
      |             ^
a.cc:12:42: error: 'min' was not declared in this scope; did you mean 'main'?
   12 |   for(int i = 1; i< N-1 ; i++) A.at(i) = min( B.at(i),B.at(i-1) ) ;
      |                                          ^~~
      |                                          main
a.cc:14:13: error: 'cout' was not declared in this scope
   14 |   rep (i,N) cout << A.at(i)<< ' ' ;
      |             ^~~~
a.cc:14:13: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << endl ;
      |   ^~~~
a.cc:15:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:11: error: 'endl' was not declared in this scope
   15 |   cout << endl ;
      |           ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(void){
  char str1[5],str2[1000];
  int N,A[100],B[100],sum;
  int i;
  
  fgets(str1,sizeof(str1),stdin);
  fgets(str2,sizeof(str2),stdin);
  
  N=atoi(str1);
  B[0]=atoi(strtok(str2," "));
  for(i=1;i<N-1;i++){
    B[i]=atoi(strtok(NULL," "));
  }
  
  A[0]=B[0]
  for(i=1;i<N-1;i++){
    if(B[i-1]>B[i]){
      A[i]=B[i-1];
    }else{
      A[i]=B[i];
    }
  }
  A[N-1]=B[N-2];
  
  sum=0;
  for(i=0;i<N;i++){
    sum+=A[i];
  }
  
  printf("%d\n",sum);
  return 0;
}
    
  

Compiler output:
main.c: In function 'main':
main.c:19:12: error: expected ';' before 'for'
   19 |   A[0]=B[0]
      |            ^
      |            ;
   20 |   for(i=1;i<N-1;i++){
      |   ~~~
Language: C

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(void){
  char str1[5],str[1000];
  int N,A[100],B[100],sum;
  int i;
  
  fgets(str1,sizeof(str1),stdin);
  fgets(str2,sizeof(str2),stdin);
  
  N=atoi(str1);
  B[0]=atoi(strtok(str2," "));
  for(i=1;i<N-1;i++){
    B[i]=atoi(strtok(NULL," "));
  }
  
  A[0]=B[0]
  for(i=1;i<N-1;i++){
    if(B[i-1]>B[i]){
      A[i]=B[i-1];
    }else{
      A[i]=B[i];
    }
  }
  A[N-1]=B[N-2];
  
  sum=0;
  for(i=0;i<N;i++){
    sum+=A[i];
  }
  
  printf("%d\n",sum);
  return 0;
}
    
  

Compiler output:
main.c: In function 'main':
main.c:11:9: error: 'str2' undeclared (first use in this function); did you mean 'str'?
   11 |   fgets(str2,sizeof(str2),stdin);
      |         ^~~~
      |         str
main.c:11:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:19:12: error: expected ';' before 'for'
   19 |   A[0]=B[0]
      |            ^
      |            ;
   20 |   for(i=1;i<N-1;i++){
      |   ~~~
Language: C++

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

int main()
{
    int n; cin >> n;
    vector<int> b(n-1);
    vector<int> a(n);
    for(int i=0; i<n-1;i++) cin >> b[i];

    for(int i=n-1;i>=0;i++){
        if(i==0 ){
            a[i] = b[i]
        }else if(i == n-1){
            a[i] = b[i-1];
        }else{
            a[i] = min(b[i],b[i-1]);
        }
    }

    int sum =0;
    for(int it:a) sum +=it;
    cout << sum << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:24: error: expected ';' before '}' token
   13 |             a[i] = b[i]
      |                        ^
      |                        ;
   14 |         }else if(i == n-1){
      |         ~
Language: C++

#include<bits/stdc++.h>

using namespace std;

int main() {
  int n;
  cin >> n;
  vi b(n + 1);
  for (int i = 1; i < n; i++) {
    cin >> b[i];
  }
  b[n] = 1e9;
  int res = b[1];
  for (int i = 1; i < n; i++) {
    res += min(b[i], b[i+1]);
  }
  cout << res;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'vi' was not declared in this scope
    8 |   vi b(n + 1);
      |   ^~
a.cc:10:12: error: 'b' was not declared in this scope
   10 |     cin >> b[i];
      |            ^
a.cc:12:3: error: 'b' was not declared in this scope
   12 |   b[n] = 1e9;
      |   ^
Language: C++

using namespace std;

int main(){
  int n;cin>>n;
  vector<int> b(n-1);for(int i=0;i<n-1;i++){cin>>b.at(i);}
  int ans=0;
  int a;
  
  ans+=b.at(0);
  for(int i=1;i<n-1;i++){
    a=min(b.at(i-1),b.at(i));
    ans+=a;
  }
  ans+=b.at(n-2);
  cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'cin' was not declared in this scope
    4 |   int n;cin>>n;
      |         ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> b(n-1);for(int i=0;i<n-1;i++){cin>>b.at(i);}
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> b(n-1);for(int i=0;i<n-1;i++){cin>>b.at(i);}
      |          ^~~
a.cc:5:50: error: 'b' was not declared in this scope
    5 |   vector<int> b(n-1);for(int i=0;i<n-1;i++){cin>>b.at(i);}
      |                                                  ^
a.cc:9:8: error: 'b' was not declared in this scope
    9 |   ans+=b.at(0);
      |        ^
a.cc:11:7: error: 'min' was not declared in this scope; did you mean 'main'?
   11 |     a=min(b.at(i-1),b.at(i));
      |       ^~~
      |       main
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout<<ans<<endl;
      |   ^~~~
a.cc:15:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:14: error: 'endl' was not declared in this scope
   15 |   cout<<ans<<endl;
      |              ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

#include <iostream>
#include <cmath>

using namespace std;

int main() {

    int N = 0;
    cin >> N;

    int last = 0;
    int current = 0;
    int sum = 0;
    
    while (num < N - 1) {
        cin >> current;        
        sum += max(last, current);
        last = current;
    }    
    sum += max(last, 0);
    cout << sum << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:12: error: 'num' was not declared in this scope; did you mean 'sum'?
   15 |     while (num < N - 1) {
      |            ^~~
      |            sum
Language: C++

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

int main() {
	int n;
	cin >> n;
	vector<int>A(n-1);
	rep(i, n - 1) {
		cin >> A[i];
	}
	int ans = A[0]+A[n-1];
	for (int i = 1;i < n-1;++i) {
		ans+=min(A[i-1],A[i])
	}
	cout << ans << endl;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:38: error: expected ';' before '}' token
   15 |                 ans+=min(A[i-1],A[i])
      |                                      ^
      |                                      ;
   16 |         }
      |         ~
Language: C++

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

int main() {
	int n;
	cin >> n;
	vector<int>A(n-1);
	rep(i, n - 1) {
		cin >> A[i];
	}
	int ans = A[0];
	for (int i = 1;i < n;++i) {
		ans+=min(A[i-1],A[i])
	}
	cout << ans << endl;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:38: error: expected ';' before '}' token
   15 |                 ans+=min(A[i-1],A[i])
      |                                      ^
      |                                      ;
   16 |         }
      |         ~
Language: C++

#include<iostream>
 
using namespace std;
 
int main() {
  int n;
  cin>>n;
  int a[n-1];
  for(int i=0;i<n-1;i++) {
    cin>>a[i];
  }
  int count=a[0];
  for(int i=0;i<n-1;i++) {
    if(a[i]>=a[i+1]) {
      count += a[i+1];
    }
    else if(a[i]<a[i+1]) {
      count += a[i];
    }
  }
  
  cout<<(count+a[n-2]<<endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   22 |   cout<<(count+a[n-2]<<endl;
      |          ~~~~~~~~~~~~^~~~~~
a.cc:22:28: error: expected ')' before ';' token
   22 |   cout<<(count+a[n-2]<<endl;
      |         ~                  ^
      |                            )
Language: C++

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
typedef long long int ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
#define sort(v) sort(v.begin(), v.end())
#define rev(r) reverse(r.begin(), r.end())
#define cout(cc) cout << cc << endl
#define shousu(ss)   cout << fixed << setprecision(ss)

int main() {
  int N;
  cin >> N;
  vll B(N-1);
  vll A(N);
  rep(i,N-1) cin >> A[i];
  A[0]=B[0];
  A[N-1]=B[N-2];
  for(int i=1;i<N-2;i++){
    A[i]=min(B[i],B[i+1]);
  }
  int sum=0;
  rep(i,N) sum+=A[i];
  cout(sum)
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:1: error: expected ';' before '}' token
   27 | }
      | ^
Language: C++

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
typedef long long int ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
#define sort(v) sort(v.begin(), v.end())
#define rev(r) reverse(r.begin(), r.end())
#define cout(cc) cout << cc << endl
#define shousu(ss)   cout << fixed << setprecision(ss)

int main() {
  int N;
  cin >> N;
  vll B(N-1);
  vll A(N);
  rep(i,N-1) cin >> A[i];
  A[0]=B[0];
  A[N-1]=B[N-2];
  for(int i=1,i<N-2,i++){
    A[i]=min(B[i],B[i+1]);
  }
  int sum=0;
  rep(i,N) sum+=A[i];
  cout(sum)
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:16: error: expected ';' before '<' token
   21 |   for(int i=1,i<N-2,i++){
      |                ^
      |                ;
a.cc:21:16: error: expected primary-expression before '<' token
a.cc:21:24: error: expected ';' before ')' token
   21 |   for(int i=1,i<N-2,i++){
      |                        ^
      |                        ;
a.cc:27:1: error: expected ';' before '}' token
   27 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	int b[110]={};
	int a[110]={};
	long long  ans=0;
	cin>>n;
	for(int i=1;i<=n-1;i++){
		cin>>b[i];
	}
	for(int i=1;i<=n;i++){
		if(i==1) {
			a[i]=b[i];
			a[n]=b[n];
		}
		else if(i!=1){
			a[i]=min(b[i-1],b[i]);
		}
	}
	for(int i=0;i<n;i++)	ans+=a[i];
	cout<<ans<<endl;
	return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:23:18: error: expected '}' at end of input
   23 |         return 0;
      |                  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	int b[110]={};
	int a[110]={};
	int ans=0;
	cin>>n;
	for(int i=0;i<n-1;i++){
		cin>>b[i];
	}
	for(int i=0;i<n;i++){
		if(i==0) {
			a[i]=b[i];
			a[n]=b[n-1];
		}
		else if(i!=0){
			a[i]=min(b[i],b[i+1]);
		}
	}
	for(int i=0;i<n;i++)	ans+=a[i];
	cout<<ans<<endl;
	return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:23:18: error: expected '}' at end of input
   23 |         return 0;
      |                  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n,i;
  cin>>n;
  int a[n-1];
  for(i=0;i<n-1;i++)
    cin>>a[i];
  sum+=a[0]+a[n-2];
  for(i=1;i<n-1;i++)
  {
    sum+=min(a[i-1],a[i]);
  }
  cout<<sum;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'sum' was not declared in this scope
   10 |   sum+=a[0]+a[n-2];
      |   ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin>>n;
  vector<int> b(n-1);
  
  for(int i=0;i<n-1;i++){
    cin>>b[i];
  }
  int ans=0;
  ans=accumulate(b.begin(),b.end());
  ans+=b[n-2];
  for(int i=0;i<n-2;i++){
    ans+=min(b[i],b[i+1]);
  }
  cout<<ans<<endl;
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: no matching function for call to 'accumulate(std::vector<int>::iterator, std::vector<int>::iterator)'
   12 |   ans=accumulate(b.begin(),b.end());
      |       ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/numeric:62,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:58,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_numeric.h:134:5: note: candidate: 'template<class _InputIterator, class _Tp> _Tp std::accumulate(_InputIterator, _InputIterator, _Tp)'
  134 |     accumulate(_InputIterator __first, _InputIterator __last, _Tp __init)
      |     ^~~~~~~~~~
/usr/include/c++/14/bits/stl_numeric.h:134:5: note:   candidate expects 3 arguments, 2 provided
/usr/include/c++/14/bits/stl_numeric.h:161:5: note: candidate: 'template<class _InputIterator, class _Tp, class _BinaryOperation> _Tp std::accumulate(_InputIterator, _InputIterator, _Tp, _BinaryOperation)'
  161 |     accumulate(_InputIterator __first, _InputIterator __last, _Tp __init,
      |     ^~~~~~~~~~
/usr/include/c++/14/bits/stl_numeric.h:161:5: note:   candidate expects 4 arguments, 2 provided
Language: C++

#include<bits/stdc++.h>
#define ll long long int 
using namespace std ;
int main(){
  int n ;
  cin >> n ;
  ll b[n] ;
  for(int i = 0 ; i < n - 1 ; i++) cin >> b[i] ;
  ll ans = b[0] ;
  for(int i = 1 ; i < n - 1 ; i++){
    //if(b[i] > b[i - 1]) ans += b[i - 1] ;
    //else ans += b[i - 1] ;
    ans += min(b[i] , b[i - 1]) ;
  }
  cout << ans + b[n - 2] ;

Compiler output:
a.cc: In function 'int main()':
a.cc:15:27: error: expected '}' at end of input
   15 |   cout << ans + b[n - 2] ;
      |                           ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i= 0 < (n) ; i++)
 
int main() {
    int n;
  cin >> n;
  vector<int> B(n-1);
  rep(i,n) cin>>B.at(i);
  vector<int> A(n);
  A.at(0)=B.at(0);
  for(int i = 0 ; i <= n-2 ; i++){
    A.at(i)=min(B.at(i),B.at(i-1));
  }
  A.at(N-1)=B.at(N-2);

int sum = 0;
   rep(i,n) sum += A.at(i);
   cout << sum;
return 0;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:42: error: expected ';' before ')' token
    3 | #define rep(i,n) for(int i= 0 < (n) ; i++)
      |                                          ^
a.cc:9:3: note: in expansion of macro 'rep'
    9 |   rep(i,n) cin>>B.at(i);
      |   ^~~
a.cc:15:8: error: 'N' was not declared in this scope
   15 |   A.at(N-1)=B.at(N-2);
      |        ^
a.cc:3:42: error: expected ';' before ')' token
    3 | #define rep(i,n) for(int i= 0 < (n) ; i++)
      |                                          ^
a.cc:18:4: note: in expansion of macro 'rep'
   18 |    rep(i,n) sum += A.at(i);
      |    ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int N;
    vector<int> A(N);
    vector<int> B(N-1);

    cin >> N;
    for(int i = 0 ; i < N-1 ; i++){
        cin >> B.at(i);
    }
    A.at(0)=B.at(0);

   for(int i = 1 ; i <N-2; i++){
       A.at(i)=min(B.at(i),B.at(i-1);
   }

   A.at(N-1)=B.at(N-2);

int sum = 0;
   for(int i=0 ; i<N ;i++) sum += A.at(i);
   cout << sum;
return 0;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:37: error: expected ')' before ';' token
   16 |        A.at(i)=min(B.at(i),B.at(i-1);
      |                   ~                 ^
      |                                     )
Language: C++

n = int(input())
b = list(map(int,input().split()))
res = b[0] + b[n - 2]
for i in range(n - 2):
    res += min(b[i], b[i + 1])
print(res)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^
Language: C++

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

int a[101], b[101];
int main() {

    int N; cin >> N;
    for (int i = 1; i <= (N-1); ++i) {
        if (i == 1) {
            cin >> b[1];
            a[1] = b[1];
        } else {
            cin >> b[i];
            if (b[i] < b[i-1]) {
                a[i-1] = b[i];
                a[i]   = b[i];
            } else {
                a[i]   = b[i];
            }
        }
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:21:6: error: expected '}' at end of input
   21 |     }
      |      ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repm(i, m, n) for (int i = (m); i < (int)(n); i++)
#define repr(i, n) for (int i = (n); i > 0; i--)
#define all(vec) vec.begin(), vec.end()
using namespace std;

int main(){
  int a;
  //string a;
  cin >> a;
  vector<int> seq(a - 1);
  rep(i, a - 1) cin >> seq[i];
  
  int ans = 0;
  //string ans = "Yes";
  //string ans = "No";
  //string ans = "YES";
  //string ans = "NO";
  int cnt = 0;
  vector<int> w(a);
  w[0] = seq[0];
  repm(i, 1, a - 3) w[i] = min(seq[i], seq[i - 1]);
  w[a - 1] = seq[a - 2];
  rep(i, n) ans += w[i];

  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:10: error: 'n' was not declared in this scope
   25 |   rep(i, n) ans += w[i];
      |          ^
a.cc:2:45: note: in definition of macro 'rep'
    2 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                             ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repm(i, m, n) for (int i = (m); i < (int)(n); i++)
#define repr(i, n) for (int i = (n); i > 0; i--)
#define all(vec) vec.begin(), vec.end()
using namespace std;

int main(){
  int a;
  //string a;
  cin >> a;
  vector<int> seq(a - 1);
  rep(i, a - 1) cin >> seq[i];
  
  int ans = 0;
  //string ans = "Yes";
  //string ans = "No";
  //string ans = "YES";
  //string ans = "NO";
  int cnt = 0;
  vector<int> w(a);
  w[0] = seq[0];
  repm(i, 1, a - 3) w[i] = min(seq[i], seq[i - 1]);
  w[n - 1] = seq[n - 2];
  rep(i, n) ans += w[i];

  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:5: error: 'n' was not declared in this scope
   24 |   w[n - 1] = seq[n - 2];
      |     ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repm(i, m, n) for (int i = (m); i < (int)(n); i++)
#define repr(i, n) for (int i = (n); i > 0; i--)
#define all(vec) vec.begin(), vec.end()
using namespace std;

int main(){
  int a;
  //string a;
  cin >> a;
  vector<int> seq(a - 1);
  rep(i, a - 1) cin >> seq[i];
  
  int ans = 0;
  //string ans = "Yes";
  //string ans = "No";
  //string ans = "YES";
  //string ans = "NO";
  int cnt = 0;
  vector<int> w(a);
  w[0] = seq[0];
  repm(i, 1, a - 3) a[i] = min(b[i], b[i - 1]);
  a[n - 1] = b[n - 2];
  rep(i, n) ans += a[i];

  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:22: error: invalid types 'int[int]' for array subscript
   23 |   repm(i, 1, a - 3) a[i] = min(b[i], b[i - 1]);
      |                      ^
a.cc:23:32: error: 'b' was not declared in this scope
   23 |   repm(i, 1, a - 3) a[i] = min(b[i], b[i - 1]);
      |                                ^
a.cc:24:5: error: 'n' was not declared in this scope
   24 |   a[n - 1] = b[n - 2];
      |     ^
a.cc:24:14: error: 'b' was not declared in this scope
   24 |   a[n - 1] = b[n - 2];
      |              ^
a.cc:25:21: error: invalid types 'int[int]' for array subscript
   25 |   rep(i, n) ans += a[i];
      |                     ^
Language: C++

#include <iostream>
#include <cstdio>
using namespace std;

int n, s, b[105]={1e9};
int main() {
	int i;
	cin >> n;
	for(i=1; i<n; i++) cin >> b[i];
	b[n] = 1e9;
	for(i=1; i<=n; i++) s += min(b[i], b[i-1]);
	cout << s;
	return 0;
}

Compiler output:
a.cc:5:19: error: narrowing conversion of '1.0e+9' from 'double' to 'int' [-Wnarrowing]
    5 | int n, s, b[105]={1e9};
      |                   ^~~
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;

int main() {
  int n;
  cin >> n;
  vector<int> b(n);
  for (int i = 0; i < n; i++) {
    cin >> b[i];
  }
  int ans;
  if (n == 1) {
    ans = 2 * b[0];
  }
  else {
    ans = b.front() + b.back();
    for (int i = 0; i < n - 1; i++) {
      ans += min(b[i], b[i + 1]);
    }
  }
  cout << ans;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'vector' was not declared in this scope
    8 |   vector<int> b(n);
      |   ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include <algorithm>
  +++ |+#include <vector>
    3 | using namespace std;
a.cc:8:10: error: expected primary-expression before 'int'
    8 |   vector<int> b(n);
      |          ^~~
a.cc:10:12: error: 'b' was not declared in this scope
   10 |     cin >> b[i];
      |            ^
a.cc:14:15: error: 'b' was not declared in this scope
   14 |     ans = 2 * b[0];
      |               ^
a.cc:17:11: error: 'b' was not declared in this scope
   17 |     ans = b.front() + b.back();
      |           ^
Language: C++

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

int main(){
  int n;
  cin >> n;
  vector<int> b(n-1);
  rep(i,n-1)  cin >> b[i];

  ans=b[0];
  REP(i,1,n-1)  ans+= min(b[i], b[i-1]);
  ans+= b[n-2];
  
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   12 |   ans=b[0];
      |   ^~~
      |   abs
Language: C

#include <stdio.h>
int main(){
  int n,ans;
  scanf("%d",&n);
  
  int b[n];
  for(int i;i<n;i++){
    scanf("%d",&b[i]);
  }
  
  ans=0;
  
  for(int i=1;i<n-1;i++){
    if(b[i]<b[i+1]){
      ans=ans+b[i+1];
    }else{
      ans=ans+b[i];
    }
  }
  ans=ans+a[1]+a[n-1];
  printf("%d",ans);
  
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:20:11: error: 'a' undeclared (first use in this function)
   20 |   ans=ans+a[1]+a[n-1];
      |           ^
main.c:20:11: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main(){
  int n,ans;
  scanf("%d",&n);
  
  int b[n];
  for(int i;i<n;i++){
    scanf("%d",&b[i]);
  }
  
  ans=0;
  for(int i=1;i<=n-1;i++){
    ans=ans+b[i];
  }
  if(a[n-1]>a[1]){
    ans=ans+a[n-1];
  }else{
    ans=ans+a[1];
  }
  
  printf("%d",ans);
  
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:6: error: 'a' undeclared (first use in this function)
   15 |   if(a[n-1]>a[1]){
      |      ^
main.c:15:6: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int> B(N-1);
  for(int i=0;i<N-1;i++){
    cin >> B.at(i);
  }
  int sum = B.at(0);
  for(int i=1;i<N-2;i++){
    sum += min(B.at(i),B.at(i+1))
  }
  sum += B.at(N-1);
  
   cout << sum << endl;
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:34: error: expected ';' before '}' token
   13 |     sum += min(B.at(i),B.at(i+1))
      |                                  ^
      |                                  ;
   14 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>

using namespace std;

const int N = 1e6+10;
long long int a[N], b[N], c[N];

int main () {
    long long int n;
    cin >> n;
    for(int i = 0 ; i < n-1 ; i++ ) {
        cin >> a[i];
    }
    b[0]=a[0];
    long long int ans = b[0];
    for(int i = 1 ; i < n ; i++ ) {
        if(i==n-1) {
            b[i]=a[i-1];
            ans+=b[i];
            break;
        }
        b[i]=min(a[i],a[i-1]);
        ans+=b[i];
    }
    cout << ans;
}
#include <bits/stdc++.h>

using namespace std;

const int N = 1e6+10;
long long int a[N], b[N], c[N];

int main () {
    long long int n;
    cin >> n;
    for(int i = 0 ; i < n-1 ; i++ ) {
        cin >> a[i];
    }
    b[0]=a[0];
    long long int ans = b[0];
    for(int i = 1 ; i < n ; i++ ) {
        if(i==n-1) {
            b[i]=a[i-1];
            ans+=b[i];
            break;
        }
        b[i]=min(a[i],a[i-1]);
        ans+=b[i];
    }
    cout << ans;
}

Compiler output:
a.cc:31:11: error: redefinition of 'const int N'
   31 | const int N = 1e6+10;
      |           ^
a.cc:5:11: note: 'const int N' previously defined here
    5 | const int N = 1e6+10;
      |           ^
a.cc:32:15: error: redefinition of 'long long int a [1000010]'
   32 | long long int a[N], b[N], c[N];
      |               ^
a.cc:6:15: note: 'long long int a [1000010]' previously declared here
    6 | long long int a[N], b[N], c[N];
      |               ^
a.cc:32:21: error: redefinition of 'long long int b [1000010]'
   32 | long long int a[N], b[N], c[N];
      |                     ^
a.cc:6:21: note: 'long long int b [1000010]' previously declared here
    6 | long long int a[N], b[N], c[N];
      |                     ^
a.cc:32:27: error: redefinition of 'long long int c [1000010]'
   32 | long long int a[N], b[N], c[N];
      |                           ^
a.cc:6:27: note: 'long long int c [1000010]' previously declared here
    6 | long long int a[N], b[N], c[N];
      |                           ^
a.cc:34:5: error: redefinition of 'int main()'
   34 | int main () {
      |     ^~~~
a.cc:8:5: note: 'int main()' previously defined here
    8 | int main () {
      |     ^~~~
Language: C++

#include <iostream>
using namespace std;
int main() {
  int n; cin >> n;
  vector<int> a(n - 1); for (int &x : a) cin >> x;
  int ans = a[0] + a[n - 2];
  for (int i = 0; i < n - 2; ++i) {
    ans += min(a[i], a[i + 1]);
  }
  cout << ans << '\n';
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |          ^~~
a.cc:5:39: error: 'a' was not declared in this scope
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |                                       ^
a.cc:6:13: error: 'a' was not declared in this scope
    6 |   int ans = a[0] + a[n - 2];
      |             ^
Language: C++

#include <iostream>
using namespace std;
int main() {
  int n; cin >> n;
  vector<int> a(n - 1); for (int &x : a) cin >> x;
  int ans = a[0] + a[n - 1];
  for (int i = 0; i < n - 1; ++i) {
    ans += min(a[i], a[i + 1]);
  }
  cout << ans << '\n';
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |          ^~~
a.cc:5:39: error: 'a' was not declared in this scope
    5 |   vector<int> a(n - 1); for (int &x : a) cin >> x;
      |                                       ^
a.cc:6:13: error: 'a' was not declared in this scope
    6 |   int ans = a[0] + a[n - 1];
      |             ^
Language: C++

#include<cstdio>
const int N=(int)1e2+5;
int b[N];
int main(int argc,char**argv){
  register int n;scanf("%d",&n);
  for(register int i=1;i<n;++i)
    b[i]=in();
 	register int ans=0;
  for(register int i=1;i<n;++i)
    ans+=b[i]<b[i+1]?b[i]:b[i+1];
  ans+=b[n-1];
  printf("%d\n",ans);
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:5:16: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    5 |   register int n;scanf("%d",&n);
      |                ^
a.cc:6:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    6 |   for(register int i=1;i<n;++i)
      |                    ^
a.cc:7:10: error: 'in' was not declared in this scope; did you mean 'i'?
    7 |     b[i]=in();
      |          ^~
      |          i
a.cc:8:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    8 |         register int ans=0;
      |                      ^~~
a.cc:9:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    9 |   for(register int i=1;i<n;++i)
      |                    ^
Language: C++


    int n;
    cin>>n;
    vector<int>A;

    int j = 0;
    for (int i = 0; i < n-1; i++) {
        cin>>j;
        A.push_back(j);
    }

    int sum = 0;
    int size = A.size();
    for (int i = 0; i < size; i++) {
        //first
        if(i==0){
            sum+=A[i];

            //others
        }else{
            if(A[i] < A[i-1]){
                sum+=A[i];
            }else{
                sum+=A[i-1];
            }
        }

    }
    sum+=A[size-1];

    cout<<sum;

    return 0;

Compiler output:
a.cc:3:5: error: 'cin' does not name a type
    3 |     cin>>n;
      |     ^~~
a.cc:4:5: error: 'vector' does not name a type
    4 |     vector<int>A;
      |     ^~~~~~
a.cc:7:5: error: expected unqualified-id before 'for'
    7 |     for (int i = 0; i < n-1; i++) {
      |     ^~~
a.cc:7:21: error: 'i' does not name a type
    7 |     for (int i = 0; i < n-1; i++) {
      |                     ^
a.cc:7:30: error: 'i' does not name a type
    7 |     for (int i = 0; i < n-1; i++) {
      |                              ^
a.cc:13:16: error: 'A' was not declared in this scope
   13 |     int size = A.size();
      |                ^
a.cc:14:5: error: expected unqualified-id before 'for'
   14 |     for (int i = 0; i < size; i++) {
      |     ^~~
a.cc:14:21: error: 'i' does not name a type
   14 |     for (int i = 0; i < size; i++) {
      |                     ^
a.cc:14:31: error: 'i' does not name a type
   14 |     for (int i = 0; i < size; i++) {
      |                               ^
a.cc:29:5: error: 'sum' does not name a type
   29 |     sum+=A[size-1];
      |     ^~~
a.cc:31:5: error: 'cout' does not name a type
   31 |     cout<<sum;
      |     ^~~~
a.cc:33:5: error: expected unqualified-id before 'return'
   33 |     return 0;
      |     ^~~~~~
Language: C++

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

int main(){
    int n;
    cin >> n;
    vector <int> b(n - 1);
    for (int tsumugi = 0; tsumugi < n - 1; tsumugi++){
        cin >> b[tsumugi];
    }

    long long ans = 0;
    ans += b[0];
    for (int karen = 1; karen < n; karen++){
        // ans += b[karen - 1];
        ans += min(b[karen - 1], b[karen])
    }

    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:43: error: expected ';' before '}' token
   16 |         ans += min(b[karen - 1], b[karen])
      |                                           ^
      |                                           ;
   17 |     }
      |     ~