criyle/codenet-compile-errors huggingface dataset:
Language: Java



import java.io.*;
import java.math.BigInteger;
import java.util.*;
import java.util.Stack;

public class ROUGH{
	public static class FastReader {
		BufferedReader br;
		StringTokenizer root;
		
 
		public FastReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
		}
 
		String next() {
			while (root == null || !root.hasMoreTokens()) {
				try {
					root = new StringTokenizer(br.readLine());
				} catch (Exception r) {
					r.printStackTrace();
				}
			}
			return root.nextToken();
		}
 
		int nextInt() {
			return Integer.parseInt(next());
		}
 
		double nextDouble() {
			return Double.parseDouble(next());
		}
 
		long nextLong() {
			return Long.parseLong(next());
		}
 
		String nextLine() {
			String str = "";
			try {
				str = br.readLine();
			} catch (Exception r) {
				r.printStackTrace();
			}
			return str;
		}
	}
	
	public static PrintWriter out = new PrintWriter (new BufferedOutputStream(System.out));
	static int mod = (int) (1e9+7);
	static long cf = 998244353;
    static final int MAX = (int) 1e6;
    public static List<Pair>[] edges;
    public static int[][] parent;
    public static int col = 20;
    public static long[] Bit;
    public static long[] fac,inv;
    public  static int[] prime; 
    public static long[] dp;
	public static FastReader sc = new FastReader();
	public static void main(String[] args) {
	//	Scanner sc = new Scanner(System.in);
 
		  int N = sc.nextInt();
          int[] B = new int[N];
          for (int i = 0; i < N - 1; i++) 
              B[i] = sc.nextInt();
          long ans = 0;
          ans = B[0];
          for (int i = 1; i <= N - 2; i++) {
              ans += Math.min(B[i - 1], B[i]);
          }
          ans += B[N - 2];

          out.println(ans);
	 
		 
		out.close();
	}

	
	static class Pair{
		int x;
		int y;
		Pair(int x,int y){
			this.x = x;
			this.y = y;
		}
	}
	
}

Compiler output:
Main.java:8: error: class ROUGH is public, should be declared in a file named ROUGH.java
public class ROUGH{
       ^
1 error
Language: C++

#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define INF 100000000
using namespace std;

int main() {
 
int N,a,b,ans=0;
cin >>N;
// vector<int> A(N);
  cin>>a;
  ans+=a;
 for(int i=; i<N; i++){cin>>b; ans+=min(a,b); a=b;}
cout<<ans+a<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:12: error: expected primary-expression before ';' token
   13 |  for(int i=; i<N; i++){cin>>b; ans+=min(a,b); a=b;}
      |            ^
Language: C++

#define ALL(l)  (l).begin(),(l).end()
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)
using namespace std;
typedef long long ll;
 

 
int main(){
    
    int n;
    ll ans=0;
    cin>>n;
    vector<int> a(n),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-1),b.at(i));
    }
    rep(i,n){
       // cout<<a.at(i)<<endl;
        ans+=a.at(i);
    }
    
    cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'cin' was not declared in this scope
   12 |     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 | #define ALL(l)  (l).begin(),(l).end()
a.cc:13:5: error: 'vector' was not declared in this scope
   13 |     vector<int> a(n),b(n-1);
      |     ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | #define ALL(l)  (l).begin(),(l).end()
a.cc:13:12: error: expected primary-expression before 'int'
   13 |     vector<int> a(n),b(n-1);
      |            ^~~
a.cc:14:20: error: 'b' was not declared in this scope
   14 |     rep(i,n-1)cin>>b.at(i);
      |                    ^
a.cc:16:5: error: 'a' was not declared in this scope
   16 |     a.at(0)=b.at(0);
      |     ^
a.cc:16:13: error: 'b' was not declared in this scope
   16 |     a.at(0)=b.at(0);
      |             ^
a.cc:20:17: error: 'min' was not declared in this scope; did you mean 'main'?
   20 |         a.at(i)=min(b.at(i-1),b.at(i));
      |                 ^~~
      |                 main
a.cc:27:5: error: 'cout' was not declared in this scope
   27 |     cout<<ans;
      |     ^~~~
a.cc:27:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int N = Integer.parseInt(in.next());
            int[] B = new int[N];
            for (int i = 0; i < N - 1; i++) {
                B[i] = Integer.parseInt(in.next());
            }
            long ans = 0;
            ans = B[0];
            for (int i = 1; i <= N - 2; i++) {
                ans += Math.min(B[i - 1], B[i]);
            }
            ans += B[N - 2];

            // 出力
            out.println(ans);

        }

    }
}



Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.io.OutputStream;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.io.IOException;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.io.InputStream;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.io.PrintWriter;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.util.Scanner;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:11:1: error: expected unqualified-id before 'public'
   11 | public class Main {
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
#define ll long long
#define INF 1000005
using namespace std;

// b[i] >= max(a[i], a[i+1]);
// a[i] = min(b[i],b[i-1]);
// b[i =1 ~(n-1)]
// a[i = 1~n]

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n;
    cin>>n;
    vector<int> b(n+1,0);
    for(int i = 1; i< n;i++) cin>> b[i];

    int b[0] = b[n] = INF;
    
    ll sum = 0;
    for(int i = 1; i<=n; i++) sum += min(b[i], b[i-1]);
    cout<< sum <<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: conflicting declaration 'int b [0]'
   18 |     int b[0] = b[n] = INF;
      |         ^
a.cc:15:17: note: previous declaration as 'std::vector<int> b'
   15 |     vector<int> b(n+1,0);
      |                 ^
Language: C++

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

int main()
{
    int n;
    cin>>n;
    int b[n-1];
    rep(i,n-1)cin>>b[i];
    int ans=b[0]+b[n-2];
    rep(i,n-2)ans+=min(b[i],b[i+1]);
    cout<<ans<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:3:23: error: 'll' was not declared in this scope
    3 | #define  rep(i,n) for(ll i = 0; i < (n); ++i)
      |                       ^~
a.cc:10:5: note: in expansion of macro 'rep'
   10 |     rep(i,n-1)cin>>b[i];
      |     ^~~
a.cc:10:9: error: 'i' was not declared in this scope
   10 |     rep(i,n-1)cin>>b[i];
      |         ^
a.cc:3:33: note: in definition of macro 'rep'
    3 | #define  rep(i,n) for(ll i = 0; i < (n); ++i)
      |                                 ^
a.cc:3:23: error: 'll' was not declared in this scope
    3 | #define  rep(i,n) for(ll i = 0; i < (n); ++i)
      |                       ^~
a.cc:12:5: note: in expansion of macro 'rep'
   12 |     rep(i,n-2)ans+=min(b[i],b[i+1]);
      |     ^~~
a.cc:12:9: error: 'i' was not declared in this scope
   12 |     rep(i,n-2)ans+=min(b[i],b[i+1]);
      |         ^
a.cc:3:33: note: in definition of macro 'rep'
    3 | #define  rep(i,n) for(ll i = 0; i < (n); ++i)
      |                                 ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:12:23: error: 'INT_MAX' was not declared in this scope
   12 |         b[0] = b[n] = INT_MAX;
      |                       ^~~~~~~
a.cc:3:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    2 | #include <algorithm>
  +++ |+#include <climits>
    3 | using namespace std;
Language: Java

import java.util.*;
public class Main{
	public static void main(String[] s){
    maxi;
    }
  	public static void maxi(){
    	Scanner s = new Scanner(System.in);
    	int sum = 0;
    	int n = s.nextInt();
    	int[] bs = new int[n -1];
    	for (int i = 0; i < n - 1; i++){
    		bs[i] = s.nextInt();
		}

    	for (int b : bs)
    		sum += b;

    	for (int i = 0; i < n - 2; i++)
    		sum += (int) Math.min(bs[i],bs[i+1]);

    	System.out.println(sum);
	}
  
}

Compiler output:
Main.java:4: error: not a statement
    maxi;
    ^
1 error
Language: C++


def main():
    buf = input()
    n = int(buf)
    buf = input()
    buflist = buf.split()
    b = list(map(int, buflist))

    a = []
    for i in range(n):
        a.append(100001)
    for i in range(n-1):
        a[i] = min(a[i], b[i])
        a[i+1] = min(a[i+1], b[i])

    ans = sum(a)
    print(ans)

if __name__ == '__main__':
    main()


Compiler output:
a.cc:19:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
   19 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:2:1: error: 'def' does not name a type
    2 | def main():
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  vector<int> vec(n-1);
  rep(i,n-1){
    cin>>vec[i];
  }
  int sum=vec[0]+vec[vec.size()-1];
  for(int i=0;i<vec.size()-1;i++){
    int right=vec[i];
    int left=vec[i+1];
    sum+=min(right,left);
  }
  cout<<sum<<endl;
  
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'i' was not declared in this scope
    7 |   rep(i,n-1){
      |       ^
a.cc:7:3: error: 'rep' was not declared in this scope
    7 |   rep(i,n-1){
      |   ^~~
Language: C++

<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  vector<int> vec(n-1);
  rep(i,n-1){
    cin>>vec[i];
  }
  int sum=vec[0]+vec[vec.size()-1];
  for(int i=0;i<vec.size()-1;i++){
    int right=vec[i];
    int left=vec[i+1];
    sum+=min(right,left);
  }
  cout<<sum<<endl;
  
  
  
}

Compiler output:
a.cc:1:1: error: expected unqualified-id before '<' token
    1 | <bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>n;
      |   ^~~
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<int> vec(n-1);
      |   ^~~~~~
a.cc:6:10: error: expected primary-expression before 'int'
    6 |   vector<int> vec(n-1);
      |          ^~~
a.cc:7:7: error: 'i' was not declared in this scope
    7 |   rep(i,n-1){
      |       ^
a.cc:7:3: error: 'rep' was not declared in this scope
    7 |   rep(i,n-1){
      |   ^~~
a.cc:10:11: error: 'vec' was not declared in this scope
   10 |   int sum=vec[0]+vec[vec.size()-1];
      |           ^~~
a.cc:14:10: error: 'min' was not declared in this scope; did you mean 'main'?
   14 |     sum+=min(right,left);
      |          ^~~
      |          main
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout<<sum<<endl;
      |   ^~~~
a.cc:16:14: error: 'endl' was not declared in this scope
   16 |   cout<<sum<<endl;
      |              ^~~~
Language: C++


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

int main()
{
  int N;
  cin >> N;
  vector<int> B(N - 1);
  auto * const b = &B[0];
  for (int i = 0; i < N - 1; ++i)
    cin >> b[i];
  vector<int> A(N);
  auto * const a = &A[0];
  a[0] = b[0];
  a[N - 1] = b[N - 2];
  for (int i = 1; i < N - 1)
    a[i] = (b[i - 1] < b[i] ? b[i - 1] : b[i]);
  int sum = 0;
  for (int i = 0; i < N; ++i)
    sum += a[i];
  cout << sum;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:28: error: expected ';' before ')' token
   18 |   for (int i = 1; i < N - 1)
      |                            ^
      |                            ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define repb(i,n) for(int i=1;i<=n-1;i++)
#define repa(i,n) for(int i=1;i<=n;i++)

int main(){
  int n,sum;
  cin >> n;
  vector<int> b(n+1);
  b[0] = b[n] = 1e6;
  repb(i,n) cin >> b[i];
  rep(i,n) sum += min(b[i-1],b[i]);
  cout << sum << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:7: error: 'i' was not declared in this scope
   12 |   rep(i,n) sum += min(b[i-1],b[i]);
      |       ^
a.cc:12:3: error: 'rep' was not declared in this scope; did you mean 'repb'?
   12 |   rep(i,n) sum += min(b[i-1],b[i]);
      |   ^~~
      |   repb
Language: C++

#include <bits/stdc++.h>
#include <cstdio>
#include <vector>
#include <iostream>
#include <utility>

#define fir first
#define sec second
#define get(n) scanf("%d",&n);
#define gets(s) string s;cin >> (s);
#define All(s) (c).begin(), (c).end()
#define chmin(x, y) x = min(x, y);
#define chmax(x, y) x = max(x, y);
#define rep(i, j) for (int (i)=0;(i)<(j);(i)++)
#define repk(i, j, k) for(int (i)=(j);(i)<(k);(i)++)
#define dump(x)  cout << #x << " = " << (x) << endl;
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
using namespace std;
typedef long long int ll;
const ll INF = 10241024;

int N;
int ans = 0;

int main(){
    cin >> N;
    vector<int> numbers(N-1);
    rep(i, N){
        int a;cin >> a;
        numbers.push_back(a);
    }

    ans += numbers[0] + numbers[N-2];
    for (int i=0;i<N-2;i++){
        ans += max(numbers[i], numbers[i+1])j;
    }

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

Compiler output:
a.cc: In function 'int main()':
a.cc:35:45: error: expected ';' before 'j'
   35 |         ans += max(numbers[i], numbers[i+1])j;
      |                                             ^
      |                                             ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define fs first
#define sc second
typedef pair<ll, ll> l_l;
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))


int main(){
  int n;
  cin>>n;
  vector<int>a(n-1);
  rep(i,n-1){
    cin>>a[i];
}
  ll sum+=a[0]+a[n-2];
  rep(i,n-2){
    sum+=min(a[i],a[i+1]);
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:9: error: expected initializer before '+=' token
   21 |   ll sum+=a[0]+a[n-2];
      |         ^~
a.cc:23:5: error: 'sum' was not declared in this scope
   23 |     sum+=min(a[i],a[i+1]);
      |     ^~~
a.cc:25:9: error: 'sum' was not declared in this scope
   25 |   cout<<sum<<endl;
      |         ^~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'sun' was not declared in this scope; did you mean 'sum'?
   14 |   cout<<sun<<endl;
      |         ^~~
      |         sum
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'sun' was not declared in this scope; did you mean 'sum'?
   14 |   cout<<sun<<endl;
      |         ^~~
      |         sum
a.cc:14:19: error: expected '}' at end of input
   14 |   cout<<sun<<endl;
      |                   ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

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

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

  vector<int> veca(n, 0);
  vector<int> vecb(n-1);
  for(int i=0; i<n-1; i++){
    cin >> vecb.at(i);
  }
  veca.at(0) = vecb.at(0);
  veca.at(n-1) = vecb.at(n-2);
  for(int i=1; i<n-1; i++){
    veca.at(i) = min(vecb.at(i-1), vecb.at(i))
  }
  int ans=0;
  for(int j=0; j<n; j++){
    ans += veca.at(j);
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:47: error: expected ';' before '}' token
   16 |     veca.at(i) = min(vecb.at(i-1), vecb.at(i))
      |                                               ^
      |                                               ;
   17 |   }
      |   ~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:9:34: error: no match for call to '(std::vector<int>) (int&)'
    9 |   for(int i=0;i<N-1;i++) cin >> B(i);
      |                                 ~^~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:8:34: error: no match for call to '(std::vector<int>) (int&)'
    8 |   for(int i=0;i<N-1;i++) cin >> B(i);
      |                                 ~^~~
Language: C++

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

int main() {
  int n;
  cin >> n;
  int b[n-1];
  vector<int> a(n);
  for(int i=0;i<(n-1);++i) cin >> b[i];
  a[0]=b[0];
  a[1]=b[0];
  for(int i=1;i<(n-1);++i){
    if(b[i]>=a[i]) a[i+1] = b[i];
    else {a[i+1]=b[i]; a[i]=b[i];}
  }
  cout << accumulate(a.begin(), a.end()) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:21: error: no matching function for call to 'accumulate(std::vector<int>::iterator, std::vector<int>::iterator)'
   16 |   cout << accumulate(a.begin(), a.end()) << endl;
      |           ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
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>
using namespace std;

int main() {
  int n;
  cin >> n;
  int a[n], b[n-1];
  for(int i=0;i<(n-1);++i) cin >> b[i];
  a[0]=b[0];
  a[1]=b[0];
  for(int i=1;i<(n-1);++i){
    if(b[i]>=a[i]) a[i+1] = b[i];
    else {a[i+1]=b[i]; a[i]=b[i];}
  }
  cout << accumulate(a, a+n) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:21: error: no matching function for call to 'accumulate(int [n], int*)'
   15 |   cout << accumulate(a, a+n) << endl;
      |           ~~~~~~~~~~^~~~~~~~
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>
using namespace std;

int main() {
  int n;
  cin >> n;
  int a[n], b[n-1];
  for(int i=0;i<(n-1);++i) cin >> b[i];
  a[0]=b[0];
  a[1]=b[0];
  for(int i=1;i<(n-1);++i){
    if(b[i]>=a[i]) a[i+1] = b[i];
    else {a[i+1]=b[i]; a[i]=b[i];}
  }
  cout << accumulate(a, a+SIZE_OF_ARRAY(a)) << endl;
  return 0;
}

Compiler output:
a.cc:5:1: error: extended character   is not valid in an identifier
    5 |   int n;
      | ^
a.cc: In function 'int main()':
a.cc:5:1: error: '\U000000a0' was not declared in this scope
    5 |   int n;
      | ^
a.cc:6:10: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |   cin >> n;
      |          ^
      |          yn
a.cc:8:35: error: 'b' was not declared in this scope
    8 |   for(int i=0;i<(n-1);++i) cin >> b[i];
      |                                   ^
a.cc:9:3: error: 'a' was not declared in this scope
    9 |   a[0]=b[0];
      |   ^
a.cc:9:8: error: 'b' was not declared in this scope
    9 |   a[0]=b[0];
      |        ^
a.cc:15:27: error: 'SIZE_OF_ARRAY' was not declared in this scope
   15 |   cout << accumulate(a, a+SIZE_OF_ARRAY(a)) << endl;
      |                           ^~~~~~~~~~~~~
Language: C++

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

int main() {
  int n;
  cin >> n;
  int a[n], b[n-1];
  for(int i=0;i<(n-1);++i) cin >> b[i];
  a[0]=b[0];
  a[1]=b[0];
  for(int i=1;i<(n-1);++i){
    if(b[i]>=a[i]) a[i+1] = b[i];
    else {a[i+1]=b[i]; a[i]=b[i];}
  }
  cout << accumulate(a.begin(), a.end()) << endl;
  return 0;
}

Compiler output:
a.cc:5:1: error: extended character   is not valid in an identifier
    5 |   int n;
      | ^
a.cc: In function 'int main()':
a.cc:5:1: error: '\U000000a0' was not declared in this scope
    5 |   int n;
      | ^
a.cc:6:10: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |   cin >> n;
      |          ^
      |          yn
a.cc:8:35: error: 'b' was not declared in this scope
    8 |   for(int i=0;i<(n-1);++i) cin >> b[i];
      |                                   ^
a.cc:9:3: error: 'a' was not declared in this scope
    9 |   a[0]=b[0];
      |   ^
a.cc:9:8: error: 'b' was not declared in this scope
    9 |   a[0]=b[0];
      |        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
const long long MOD = 1000000007;
const long long INF = 9999999999999999;
using ll = long long;
int main(){
  int N;
  cin>>N;
  a[N];
  for(int i = 0;i<N;i++){
    cin>>a[i];
  }
  int ans = 0;
  for(int i = 0;i<N-1;i++){
    ans += min(a[i],a[i+1]);
  }
  cout << ans+a[0]+a[N-1] << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'a' was not declared in this scope
    9 |   a[N];
      |   ^
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];
  }
  vector<int> a(n,0);
  a[n-1]=b[n-2];
  a[0]=b[0];
  for(int i=n-2;1<=i;i--){
    if(b[i]<=b[i-1]){
      a[i]=b[i];
    }
    else{
      a[i]=b[i-1];
  }
  int ans=0;
  for(int i=0;i<n;i++){
    ans += a[i]
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:16: error: expected ';' before '}' token
   24 |     ans += a[i]
      |                ^
      |                ;
   25 |   }
      |   ~             
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] b = new int[n - 1];
    for(int i = 0; i < n - 1; i++) {
      b[i] = sc.nextInt();
    }
    int ans = b[0] + b[n - 2];
    for(int i = 0; i < n - 2) {
      ans += Math.min(b[i], b[i + 1]);
    }
    System.out.println(ans);
  }
}

Compiler output:
Main.java:12: error: ';' expected
    for(int i = 0; i < n - 2) {
                            ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  	int n, slv = 0;
  	scanf("%d", &n);
  	n--;
  	int v[n];
  	for(int i = 0; i < n; i++) scanf("%d", &v[i]);
  	for(int i = 0; i < n - 1; i++) slv += min(v[i],v[i+1]);
  	ans += v[0];ans += v[n - 1];
 	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   11 |         ans += v[0];ans += v[n - 1];
      |         ^~~
      |         abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define mp make_pair
#define F first
#define S second
#define IOS ios_base::sync_with_stdio(0); cin.tie(0)
#define INF 0x3f3f3f3f
#include<ext/rope>
using namespace __gnu_cxx;
typedef long long ll;
typedef pair<ll,ll> pii;
typedef pair<double,double> pdd;
ll b[105],a[105],n;
int main()
{
  IOS:
    while(cin>>n)
    {
        rep1(i,n-1) cin>>b[i];
        a[0]=b[1];a[n-1]=b[n-1];
        for(int i=1;i<n-1;i++)
        {
            a[i]=min(b[i],b[i+1]);
        }
        ll sum=0;
        rep(i,n)
        {
            sum+=a[i];
        }
        cout<<sum<<'\n';
    }
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:19:6: error: expected ';' before ':' token
   19 |   IOS:
      |      ^
Language: C++

#include<iostream>
#include<numeric>
#define ll long long
using namespace std;

int main() {
  ll N,b,i = 0;
  cin >> N;
  std::vector<ll> A(N);
  std::vector<ll> B(N-1);
  while(cin >> b) {
    B[i] = b;
    i++;
  }
  if (N == 2) cout << 2*B[0] << endl;
  else {
    A[N-1] = B[N-1 -1];
    for(ll j = N-2; j >= 0; j--) {
      if (j-2 >= 2) {
        if (B[j-1] >= B[j-2]) A[j] = std::min(A[j+1],B[j-1]);
        else A[j] = std::max(A[j+1],B[j-1]);
      }
      else A[j] = std::min(A[j+1],B[0]);
    }
    cout << std::accumulate(A.begin(),A.end(),0) << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: 'vector' is not a member of 'std'
    9 |   std::vector<ll> A(N);
      |        ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include<numeric>
  +++ |+#include <vector>
    3 | #define ll long long
a.cc:3:12: error: expected primary-expression before 'long'
    3 | #define ll long long
      |            ^~~~
a.cc:9:15: note: in expansion of macro 'll'
    9 |   std::vector<ll> A(N);
      |               ^~
a.cc:10:8: error: 'vector' is not a member of 'std'
   10 |   std::vector<ll> B(N-1);
      |        ^~~~~~
a.cc:10:8: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
a.cc:3:12: error: expected primary-expression before 'long'
    3 | #define ll long long
      |            ^~~~
a.cc:10:15: note: in expansion of macro 'll'
   10 |   std::vector<ll> B(N-1);
      |               ^~
a.cc:12:5: error: 'B' was not declared in this scope
   12 |     B[i] = b;
      |     ^
a.cc:15:25: error: 'B' was not declared in this scope
   15 |   if (N == 2) cout << 2*B[0] << endl;
      |                         ^
a.cc:17:5: error: 'A' was not declared in this scope
   17 |     A[N-1] = B[N-1 -1];
      |     ^
a.cc:17:14: error: 'B' was not declared in this scope
   17 |     A[N-1] = B[N-1 -1];
      |              ^
Language: C++

#include<iostream>
#include<numeric>
#define ll long long
using namespace std;

int main() {
  ll N,b,i = 0;
  cin >> N;
  std::vector<ll> A(N),B(N-1);
  while(cin >> b) {
    B[i] = b;
    i++;
  }
  if (N == 2) cout << 2*B[0] << endl;
  else {
    A[N-1] = B[N-1 -1];
    for(ll j = N-2; j >= 0; j--) {
      if (j-2 >= 2) {
        if (B[j-1] >= B[j-2]) A[j] = std::min(A[j+1],B[j-1]);
        else A[j] = std::max(A[j+1],B[j-1]);
      }
      else A[j] = std::min(A[j+1],B[0]);
    }
    cout << std::accumulate(A.begin(),A.end(),0) << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: 'vector' is not a member of 'std'
    9 |   std::vector<ll> A(N),B(N-1);
      |        ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include<numeric>
  +++ |+#include <vector>
    3 | #define ll long long
a.cc:3:12: error: expected primary-expression before 'long'
    3 | #define ll long long
      |            ^~~~
a.cc:9:15: note: in expansion of macro 'll'
    9 |   std::vector<ll> A(N),B(N-1);
      |               ^~
a.cc:11:5: error: 'B' was not declared in this scope
   11 |     B[i] = b;
      |     ^
a.cc:14:25: error: 'B' was not declared in this scope
   14 |   if (N == 2) cout << 2*B[0] << endl;
      |                         ^
a.cc:16:5: error: 'A' was not declared in this scope
   16 |     A[N-1] = B[N-1 -1];
      |     ^
a.cc:16:14: error: 'B' was not declared in this scope
   16 |     A[N-1] = B[N-1 -1];
      |              ^
Language: C++

#include<iostream>
#include<vector>
using namespace std;
#define ll long long

int main() {
  ll N,b,i = 0;
  cin >> N;
  std::vector<ll> A(N);
  std::vector<ll> B(N-1);
  while(cin >> b) {
    B[i] = b;
    i++;
  }
  if (N == 2) cout << 2*B[0] << endl;
  else {
    A[N-1] = B[N-2];
    for(ll j = N-2; j >= 0; j--) {
      if (j-2 >=0) A[j] = std::min(A[j+1],B[j-1]);
      else A[j] = std::min(A[j+1],B[0]);
    }
    cout << std::accumulate(A.begin(),A.end(),0) << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:18: error: 'accumulate' is not a member of 'std'
   22 |     cout << std::accumulate(A.begin(),A.end(),0) << endl;
      |                  ^~~~~~~~~~
Language: C++

#include<iostream>
#include<vector>
using namespace std;
#define ll long long

int main() {
  ll N,b,i = 0;
  cin >> N;
  std::vector<ll> A(N);
  std::vector<ll> B(N-1);
  while(cin >> b) {
    B[i] = b;
    i++;
  }
  if (N == 2) cout << 2*B[0] << endl;
  else {
    A[N-1] = B[N-2];
    for(ll j = N-2; j >= 0; j--) {
      if (j-2 >=0 && B[j-1] >= B[j-2]) A[j] = std::min(A[j+1],B[j-1]);
      else if (j-2 >=0 && B[j-1] <= B[j-2]) A[j] = A[j+1];
      else A[j] = std::min(A[j+1],B[0]);
    }
    cout << std::accumulate(A.begin(),A.end(),0) << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:18: error: 'accumulate' is not a member of 'std'
   23 |     cout << std::accumulate(A.begin(),A.end(),0) << endl;
      |                  ^~~~~~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <functional>
#include <algorithm>
#include <numeric>
#include <string>

using namespace std;



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

}
~          

Compiler output:
a.cc:26:2: error: expected class-name at end of input
   26 | ~
      |  ^
Language: C++

#include <iostream>
#include <vector>
template<T> T min(T a, T b){
	return a<b?a:b;
}
int main(void){
  int n;
  std::cin >> n;
  std::vector<int> b(n);
  for(int i = 0; i < n; i++){
  	std::cin >> n;
  }
  long sum = b[n-1];
  for(int i = 1; i < n-1; i++){
  	sum += min(b[i], b[i-1]);
  }
  std::cout << sum << std::endl;
}

Compiler output:
a.cc:3:10: error: 'T' has not been declared
    3 | template<T> T min(T a, T b){
      |          ^
a.cc:3:13: error: 'T' does not name a type
    3 | template<T> T min(T a, T b){
      |             ^
a.cc: In function 'int main()':
a.cc:15:16: error: 'min' was not declared in this scope; did you mean 'std::min'?
   15 |         sum += min(b[i], b[i-1]);
      |                ^~~
      |                std::min
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: 'std::min' declared here
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
Language: C++

#include<bits/stdc++.h>
# define speed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
# define CS
long long int ll;
using namespace std;
speed;
int main(){
  int N;
  vector<float> v;
  cin >> N;
  float vi;
  for(int i=0;i<N;i++){
    cin >> vi;
    v.push_back(vi);
  }
  sort(v.begin(),v.end());

  float ans=v[0];

  for(int i=1;i<N;i++){
    ans=(ans+v[i])/2;
  }

  cout << ans << endl;

}






Compiler output:
a.cc:2:41: error: expected constructor, destructor, or type conversion before '(' token
    2 | # define speed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
      |                                         ^
a.cc:6:1: note: in expansion of macro 'speed'
    6 | speed;
      | ^~~~~
a.cc:2:49: error: 'cin' does not name a type
    2 | # define speed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
      |                                                 ^~~
a.cc:6:1: note: in expansion of macro 'speed'
    6 | speed;
      | ^~~~~
a.cc:2:63: error: 'cout' does not name a type
    2 | # define speed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
      |                                                               ^~~~
a.cc:6:1: note: in expansion of macro 'speed'
    6 | speed;
      | ^~~~~
Language: C++

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

int main(){
  int n;
  cin >> n;
  vector<int> b(n-1);
  vector<int> a(n);
  rep(i,n-1) cin >> b[i];
  
  a[0] = b[0];
  a[n-1] = b[n-2];
  
  for(i=1;i<=n-2;i++){
    a[i] = min(b[i-1],b[i]);
  }
  
  ll ans = 0;
  rep(i,n) ans += a[i];
  
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:7: error: 'i' was not declared in this scope
   16 |   for(i=1;i<=n-2;i++){
      |       ^
Language: C++

#include <vector>
#include <iostream>
using namespace std;
int mainc()
{
	int N;
	cin >> N;
	vector<int> B(N - 1);
	for (auto &x : B) cin >> x;
	int sum = B[0] + B[N - 2];
	for (int i = 1; i < N - 1; i++) {
		sum += ((B[i - 1] < B[i]) ? B[i - 1] : B[i]);
	}
	cout << sum << endl;
	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: Java

public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int count = std.nextInt();
        List<Integer> bs = IntStream.range(0, count - 1).map(it -> std.nextInt()).boxed().collect(Collectors.toList());

        int res = min(bs);
        System.out.println(res);
    }

    private static int min(List<Integer> bs) {
        List<Integer> cs = IntStream.range(0, bs.size()).map(it -> 0).boxed().collect(Collectors.toList());
        cs.set(0, bs.get(0));

        for (int i = 1; i < cs.size(); i++) {
            int minVal = Math.min(bs.get(i - 1), bs.get(i));
            cs.set(i, minVal);
        }
        cs.add(bs.get(bs.size() - 1));
        return cs.stream().mapToInt(it -> it).sum();
    }
}

Compiler output:
Main.java:11: error: cannot find symbol
    private static int min(List<Integer> bs) {
                           ^
  symbol:   class List
  location: class Main
Main.java:3: error: cannot find symbol
        Scanner std = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
        Scanner std = new Scanner(System.in);
                          ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
        List<Integer> bs = IntStream.range(0, count - 1).map(it -> std.nextInt()).boxed().collect(Collectors.toList());
        ^
  symbol:   class List
  location: class Main
Main.java:5: error: cannot find symbol
        List<Integer> bs = IntStream.range(0, count - 1).map(it -> std.nextInt()).boxed().collect(Collectors.toList());
                           ^
  symbol:   variable IntStream
  location: class Main
Main.java:5: error: cannot find symbol
        List<Integer> bs = IntStream.range(0, count - 1).map(it -> std.nextInt()).boxed().collect(Collectors.toList());
                                                                                                  ^
  symbol:   variable Collectors
  location: class Main
Main.java:12: error: cannot find symbol
        List<Integer> cs = IntStream.range(0, bs.size()).map(it -> 0).boxed().collect(Collectors.toList());
        ^
  symbol:   class List
  location: class Main
Main.java:12: error: cannot find symbol
        List<Integer> cs = IntStream.range(0, bs.size()).map(it -> 0).boxed().collect(Collectors.toList());
                           ^
  symbol:   variable IntStream
  location: class Main
Main.java:12: error: cannot find symbol
        List<Integer> cs = IntStream.range(0, bs.size()).map(it -> 0).boxed().collect(Collectors.toList());
                                                                                      ^
  symbol:   variable Collectors
  location: class Main
9 errors
Language: C++

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

int main() {
    int n;
    scanf("%d", &n);
    vector<int> b(n-1);
    for (int &i: b) scanf("%d", &i);
    b.push_back(1000000000);
    vector<int> a(n);
    a[0] = b[0];
    for (int i=1; i<n; i++) {
        a[i] = min(b[i-1], b[i]);
    }
    for (int i: a) {
        printf("%d ", i);
    // }
    // printf("\n");
    printf("%d\n", accumulate(a.begin(), a.end(), 0));
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:2: error: expected '}' at end of input
   20 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int n, sum=0;

int main() {
 	cin>>y;
 	int a[y], b[y];
 	for (int i=0; i<y-1; i++) {
 	 	cin>>b[i];
	 }
	 a[0]=b[0];
	 a[y-1]=b[y-2];
 	for (int i=1; i<y-1; i++) {
  		a[i]=min(b[i], b[i-1]);
 	}
	 for (int i=0; i<y; i++) {
 	 	sum+=a[i];
 	}
	 cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:14: error: 'y' was not declared in this scope; did you mean 'yn'?
    7 |         cin>>y;
      |              ^
      |              yn
a.cc:10:22: error: 'b' was not declared in this scope
   10 |                 cin>>b[i];
      |                      ^
a.cc:12:10: error: 'a' was not declared in this scope
   12 |          a[0]=b[0];
      |          ^
a.cc:12:15: error: 'b' was not declared in this scope
   12 |          a[0]=b[0];
      |               ^
Language: C++

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

int n, sum=0;

int main() {
 	cin>>y;
 	int a[y], b[y];
 	for (int i=0; i<y-1; i++) {
 	 	cin>>b[i];
	 }
	 a[0]=b[0];
	 a[y-1]=b[y-2];
 	for (int i=1; i<y-1; i++) {
  		a[i]=min(b[i], b[i-1]);
 	}
	 for (int i=0; i<n; i++) {
 	 	sum+=a[i];
 	}
	 cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:14: error: 'y' was not declared in this scope; did you mean 'yn'?
    7 |         cin>>y;
      |              ^
      |              yn
a.cc:10:22: error: 'b' was not declared in this scope
   10 |                 cin>>b[i];
      |                      ^
a.cc:12:10: error: 'a' was not declared in this scope
   12 |          a[0]=b[0];
      |          ^
a.cc:12:15: error: 'b' was not declared in this scope
   12 |          a[0]=b[0];
      |               ^
Language: C++

#include <stdio.h>
int main(void){
  int n, b[100];
  int i, sum = 0;
  scanf("%d",n);
  for(i = 0; i < n - 1; i++){
    scanf("%d",b[i]);
  }
  sum = sum + b[0]
  for(i = 0; i < n; i++){
    sum = sum + b[i];
    if(i > 0 && b[i - 1] >= b[i]){
      sum = sum - b[i - 1] + b[i]
    }
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: expected ';' before 'for'
    9 |   sum = sum + b[0]
      |                   ^
      |                   ;
   10 |   for(i = 0; i < n; i++){
      |   ~~~              
a.cc:10:24: error: expected ';' before ')' token
   10 |   for(i = 0; i < n; i++){
      |                        ^
      |                        ;
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 += b[0]+b[n-1];
  for(int i=1; i<n-1; i++){
    ans += min(b[i-1],b[i]);
  }
  
  cout << ans << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: expected initializer before '+=' token
   12 |   int ans += b[0]+b[n-1];
      |           ^~
a.cc:14:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   14 |     ans += min(b[i-1],b[i]);
      |     ^~~
      |     abs
a.cc:17:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   17 |   cout << ans << endl;
      |           ^~~
      |           abs
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 += b[0];
  for(int i=1; i<n; i++){
    ans += min(b[i-1],b[i]);
  }
  
  cout << ans << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: expected initializer before '+=' token
   12 |   int ans += b[0];
      |           ^~
a.cc:14:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   14 |     ans += min(b[i-1],b[i]);
      |     ^~~
      |     abs
a.cc:17:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   17 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,bb,ba;
    long long res = 0;
    cin>>n;
    cin>>bb;
   res += bb;
    for(int i = 1;i<n-1;i++){
        cin>>ba;
      if(bb>ba){
        res+=ba;
      }else{
        res+=bb;
      }
      bb = ba;
    }
    cin>>bb;
    res += bb
  cout<<res<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:14: error: expected ';' before 'cout'
   19 |     res += bb
      |              ^
      |              ;
   20 |   cout<<res<<endl;
      |   ~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,bb,ba;
    long long res = 0;
    cin>>n;
    cin>>bb;
   res += bb;
    for(int i = 1;i<n;i++){
    	cin>>ba;
      int t = min(ba,bb)
        res += t;
      bb = ba;
    }
  cout<<res;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: expected ',' or ';' before 'res'
   12 |         res += t;
      |         ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,bb,ba;
    long long res = 0;
    cin>>n;
    cin>>bb;
   res += bb;
    for(int i = 1;i<b;i++){
    	cin>>ba;
      int t = min(ba,bb)
        res += t;
      bb = ba;
    }
  cout<<res;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 'b' was not declared in this scope
    9 |     for(int i = 1;i<b;i++){
      |                     ^
a.cc:12:9: error: expected ',' or ';' before 'res'
   12 |         res += t;
      |         ^~~
Language: C++

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

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

import java.util.*;
class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
	int pre = sc.nextInt();
    int total += pre;
    for (int i = 0; i < N-2; i++) {
      int cur = sc.nextInt();
      total += Math.max(pre, cur);
      pre = cur;
    }
    total += Math.max(pre, 0);
    System.out.println(total);
  }
}

Compiler output:
Main.java:7: error: ';' expected
    int total += pre;
             ^
Main.java:7: error: not a statement
    int total += pre;
                 ^
2 errors
Language: C++

#include<iostream>
using namespace std;
int main(){
  int N, B[100];
  cin >> N;
  for(int i=0; i<N-1; i++) cin >> B[i];
  unsigned int ans=0;
  ans += B[0];
  for(int i=1; i<N-1; i++){
    if(B[i] < B[i-1]){
      ans += B[i];
    }else{
      ans += B[i-1];
    }
  }
  ans += B[N-];
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:14: error: expected primary-expression before ']' token
   16 |   ans += B[N-];
      |              ^
Language: C++

#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long ll;

int main(){
  int N; scanf("%d", &N);
  
  int ans=0, prev=0, cur=0;
  for(int i=0; i<N-1; i++){
    scanf("%d", &cur);
    ans += max(prev, cur);
  }
  ans += cur;
  cout << cur << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << cur << "\n";
      |   ^~~~
a.cc:3:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <algorithm>
  +++ |+#include <iostream>
    3 | using namespace std;
Language: C

#include <stdio.h>

int main(void) {
	int n; scanf("%d",&n);
	int bry[n-1]; for (int i=0; i<n-1; i++) scanf("%d",bry[i]);
	
	int sum = b[0] + b[n-2];
	for (int i=1; i<n-1; i++) {
		if (bry[i-1] < bry[i]) {
			sum += bry[i-1];
		} else {
			sum += bry[i];
		}
	}
	printf("%d",sum);
	
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:7:19: error: 'b' undeclared (first use in this function)
    7 |         int sum = b[0] + b[n-2];
      |                   ^
main.c:7:19: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <cstdint>
#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:13:25: error: 'INT_MAX' was not declared in this scope
   13 |   std::vector<int> a(n, INT_MAX);
      |                         ^~~~~~~
a.cc:5:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    4 | #include <vector>
  +++ |+#include <climits>
    5 |