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

s = input()

sum = 0
for bit in range(1 << (len(s) - 1)):
    expr = s[0]
    for i in range(len(s) - 1):
        if bit & 1 << i:
            expr += '+'
        expr += s[i + 1]
    sum += eval(expr)

print(sum)


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

s = input()

sum = 0
for bit in range(1 << (len(s) - 1)):
    expr = s
    ins = 0
    for i in range(len(s) - 1):
        ins += i
        if bit & 1 << i:
            expr = expr[:ins+1] + '+' + expr[ins+1:]
            ins += 1
    sum += eval(expr)

print(sum)


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

#include <iostream>
#include <string>
#include <vector>
#include <math.h>
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <map>
#include <set>
#include <queue>
#include <list>
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,a,b) for(int i=int(a);i<int(b);++i)
#define crep(i) for(char i='a';i<='z';i++)
#define psortsecond(A,N) sort(A,A+N,[](const pii &a, const pii &b){return a.second<b.second;});
#define psortfirst(A,N) sort(A,A+N,[](const pii &a, const pii &b){return a.first<b.first;});
#define ALL(x) (x).begin(),(x).end()
int ctoi(const char c){
    if('0' <= c && c <= '9') return (c-'0');
    return -1;
}
using namespace std;
using pii  = pair<int,int>;
long long gcd(long long a, long long b){return (b == 0 ? a : gcd(b, a%b));}
long long lcm(long long a, long long b){return a*b/gcd(a,b);}
typedef long long ll;
#define MOD 1000000007
#define EPS 10e-8

int read(){
    int x=0,f=1;char c=getchar();
    while(c<'0'||c>'9') f=(c=='-')?-1:1,c=getchar();
    while(c>='0'&&c<='9') x=x*10+c-48,c=getchar();
    return f*x;
}
char s[1000];
int n,Ans;
int c[1001],b[1001];
void dfs(int x,int ans){
	if(x==n){
		int res=0,js=0;
		for(int i=1;i<=ans;i++){
			js=0;
			for(int j=c[i-1]+1;j<=c[i];j++)
				js=js*10+s[j]-'0';
			res+=js;
		}
		Ans+=res;
		return ;
	}
	for(int i=x+1;i<=n;i++)
		c[ans]=i,dfs(i,ans+1);
}
main(){
	cin >> S;
	n=strlen(s+1);
	dfs(0,1);
	printf("%lld",Ans);
    return 0;
}


Compiler output:
a.cc:55:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   55 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:56:16: error: 'S' was not declared in this scope
   56 |         cin >> S;
      |                ^
a.cc:57:11: error: 'strlen' was not declared in this scope
   57 |         n=strlen(s+1);
      |           ^~~~~~
a.cc:13:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
   12 | #include <list>
  +++ |+#include <cstring>
   13 | #define rep(i,n) for(int i=0;i<(n);i++)
Language: C++

import sys
input=sys.stdin.readline

# 整数 n を m 進数 k 桁で表現した文字列
# ex. bins(3,2,2) => 11
def bins(n, m, k):
    # n がマイナスだったり、k桁で収まらない場合やばそう
    s = ""
    while n > 0:
        s = str(n%m) + s
        n //= m
    s = "0"*(k-len(s)) + s
    return s

def main():
    s = input().strip()
    n = len(s)-1 # s の各文字（"+" を入れるスキマ）の数
    ans = 0
    # s の各文字の間に "+" を挿入する・しない場合の
    # 全ての文字列 (2**n 通り) を作って計算する
    for i in range(2**n):
        b = bins(i,2,n)
        t = s[0]
        for j in range(n):
            if b[j] == "1":
                t += "+"
            t += s[j+1]
        ans += eval(t)
    print(ans)

if __name__ == '__main__':
    main()


Compiler output:
a.cc:4:3: error: invalid preprocessing directive #\U00006574\U00006570
    4 | # 整数 n を m 進数 k 桁で表現した文字列
      |   ^~~~
a.cc:5:3: error: invalid preprocessing directive #ex
    5 | # ex. bins(3,2,2) => 11
      |   ^~
a.cc:7:7: error: invalid preprocessing directive #n
    7 |     # n がマイナスだったり、k桁で収まらない場合やばそう
      |       ^
a.cc:7:9: error: extended character 、 is not valid in an identifier
    7 |     # n がマイナスだったり、k桁で収まらない場合やばそう
      |         ^
a.cc:17:18: error: stray '#' in program
   17 |     n = len(s)-1 # s の各文字（"+" を入れるスキマ）の数
      |                  ^
a.cc:19:7: error: invalid preprocessing directive #s
   19 |     # s の各文字の間に "+" を挿入する・しない場合の
      |       ^
a.cc:20:7: error: invalid preprocessing directive #\U00005168\U00003066\U0000306e\U00006587\U00005b57\U00005217
   20 |     # 全ての文字列 (2**n 通り) を作って計算する
      |       ^~~~~~~~~~~~
a.cc:31:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
   31 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:1:1: error: 'import' does not name a type
    1 | import sys
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: Java

// "static void main" must be defined in a public class.
import java.util.*
class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.nextLine();
        //要素数
        int n = str.length()-1;
        //最終的な合計を格納する値
        long total = 0;
        
        //ビット全探索で探索を行う
        for(int i = 0; i < Math.pow(n,2); i++){
            String ans = new String();
            for(int j = 0; j <= n; j++){
                ans += Character.toString(str.charAt(j));
                //+を挟むタイミングでans文字列に格納してある数だけ合計に足す
                if((1 & i >> j) == 1){
                    total += Long.parseLong(ans);
                    ans = new String();}
            }
            total += Long.parseLong(ans);
        }
        System.out.println(total);
    }
}

Compiler output:
Main.java:2: error: ';' expected
import java.util.*
                  ^
1 error
Language: Java

// "static void main" must be defined in a public class.
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.nextLine();
        //要素数
        int n = str.length()-1;
        //最終的な合計を格納する値
        long total = 0;
        
        //ビット全探索で探索を行う
        for(int i = 0; i < Math.pow(n,2); i++){
            String ans = new String();
            for(int j = 0; j <= n; j++){
                ans += Character.toString(str.charAt(j));
                //+を挟むタイミングでans文字列に格納してある数だけ合計に足す
                if((1 & i >> j) == 1){
                    total += Long.parseLong(ans);
                    ans = new String();}
            }
            total += Long.parseLong(ans);
        }
        System.out.println(total);
    }
}

Compiler output:
Main.java:4: error: cannot find symbol
        Scanner scan = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
        Scanner scan = new Scanner(System.in);
                           ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

import java.util.Scanner;

public class Main {
			static long x;
	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		String array = sc.next();
		x=0;
		for(int i=0;i<array.length();i++) {
			f(i,0,array);
		}
	}
	
	static void f(int plus,long sum,String str) {
		if(plus!=0) {
			for(int i;i<str.length()-plus+1;i++) {
				f(plus-1,Long.parseLong(str.substring(0,i))+sum,str.substring(i,str.length()));
			}
		}else {
			x+=sum+Long.parseLong(str);
		}
	}
}


Compiler output:
Main.java:16: error: variable i might not have been initialized
			for(int i;i<str.length()-plus+1;i++) {
			          ^
1 error
Language: C++

#include <bits/stdc++.h>

using namespace std;

class CManyFormulas {
public:
    void solve(std::istream &cin, std::ostream &cout) {
        string s;
        cin >> s;
        reverse(s.begin(), s.end());
        long long ans = 0;
        for (int i = 0; i < pow(2, s.size() - 1); ++i) {
            vector<char> vec(10, '=');
            bitset<10> bits(i);
            for (int j = 0; j < 10; ++j) {
                if (bits[j] == 1) {
                    vec[j] = '+';
                }
            }
            long long digit = 1;
            for (int k = 0; k < s.size(); k++) {
                long long tmp = (s[k] - '0');
                tmp *= digit;
//                long tmp = ('1') * digit;
                ans += tmp;
                if (vec[k] == '=') {
                    digit *= 10;
                } else {
                    digit = 1;
                }
            }
        }
        cout << ans << endl;
    }
};

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

def c_many_formulas(S):
    import itertools
    ans = 0
    for operators in itertools.product(('', '+'), repeat=len(S) - 1):
        operator = list(operators) + ['']  # zip()に渡す文字列の長さを合わせる
        formula = ''.join([value + op for value, op in zip(S, operator)])
        ans += eval(formula)
    return ans

S = input()
print(c_many_formulas(S))

Compiler output:
a.cc:4:41: error: empty character constant
    4 |     for operators in itertools.product(('', '+'), repeat=len(S) - 1):
      |                                         ^~
a.cc:5:39: error: empty character constant
    5 |         operator = list(operators) + ['']  # zip()に渡す文字列の長さを合わせる
      |                                       ^~
a.cc:5:44: error: stray '#' in program
    5 |         operator = list(operators) + ['']  # zip()に渡す文字列の長さを合わせる
      |                                            ^
a.cc:6:19: error: empty character constant
    6 |         formula = ''.join([value + op for value, op in zip(S, operator)])
      |                   ^~
a.cc:1:1: error: 'def' does not name a type
    1 | def c_many_formulas(S):
      | ^~~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cmath>
#include <cstdlib>
using namespace std;

int main(){

    string str_input;
    cin >> str_input;

    long long result_sum = 0;
    for(int bit = 0; bit < (1 << (str_input.size()-1)); bit++){
        vector<long long> num_list;

        vector <bool> add_opp(str_input.size()-1, false);
        for(unsigned int i = 0; i < add_opp.size(); i++){
            if(bit & (1 << i)) {
                add_opp[i] = true;
            }
        }

        unsigned int start_digit = 0;
        unsigned int digit_len   = 1;
        for(unsigned int k = 0; k < add_opp.size(); k++) {
            if(k == add_opp.size() - 1) {
                if(add_opp[k] == true) {
                    result_sum += atoll(str_input.substr(start_digit, digit_len).c_str());
                    start_digit = k+1;
                }
                result_sum += atoll(str_input.substr(start_digit).c_str());
                continue;
            }
            if(add_opp[k] == false) {
                digit_len++;
                continue;
            }

            result_sum += atoll(str_input.substr(start_digit, digit_len).c_str());
            start_digit = k+1;
            digit_len = 1;
        }
    }

    cout << result_sum << endl;
    return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:47:14: error: expected '}' at end of input
   47 |     return 0;
      |              ^
a.cc:8:11: note: to match this '{'
    8 | int main(){
      |           ^
Language: C++

s=input()
n=len(s)
ans=0
for i in range(1<<(n-1)):
  tmp=int(s[0])
  for j in range(n-1):
    if (i&(1<<j)):
      tmp*=10
      tmp+=int(s[j+1])
    else:
      ans+=tmp
      tmp=int(s[j+1])
  ans+=tmp
print(ans)



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

#include <iostream>
using namespace std;

int main(){
  string S; cin >> S;
  int n = S.size();
  int ans = S-'0';
  printf("%d", ans);
  /*
  for(int bit=0; bit<<(1<<n); bit++){
    for(int i=0; i<n; i++){
      
    }
  }
  */
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:14: error: no match for 'operator-' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'char')
    7 |   int ans = S-'0';
      |             ~^~~~
      |             | |
      |             | char
      |             std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/string:48,
                 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_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution failed:
a.cc:7:15: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
    7 |   int ans = S-'0';
      |               ^~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1790 |     operator-(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note:   template argument deduction/substitution failed:
a.cc:7:15: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
    7 |   int ans = S-'0';
      |               ^~~
Language: C++

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

int main(){
    char s[11];
    scanf("%s",s);

    int i,j;

    long long ans=0;
    long long tmp;  // ’＋’で分割したものを代入
    for(i=0;i<( 1 << ( strlen(s) - 1 ) );i++){ //　S="125"なら、i=(00)_2～(11)_2まで。
                                            　 //  strlen(s) にすると、i=(111)_2までになる。
        tmp = s[0] - '0';                       //　Sの１文字目を数値に変換して代入
        for(j=0;j<( strlen(s) - 1 );j++){
            if( i & ( 1 << j ) ){       //　例：(i,j)=(0,1) ⇒ (00) AND (10)
                ans += tmp;             //        　　    　⇒ (10) ⇒ 12 + 5
                tmp = 0;                //  分割した分を足して、tmpを初期化
            }
            tmp = tmp*10 + (s[j+1] - '0');
        }
        ans += tmp;　// 最後の分割部分を足す。
    }

    printf("%lld",ans);

    return 0;
}

Compiler output:
a.cc:14:45: error: extended character 　 is not valid in an identifier
   14 |                                             　 //  strlen(s) にすると、i=(111)_2までになる。
      |                                             ^
a.cc:23:20: error: extended character 　 is not valid in an identifier
   23 |         ans += tmp;　// 最後の分割部分を足す。
      |                    ^
a.cc: In function 'int main()':
a.cc:14:45: error: '\U00003000' was not declared in this scope
   14 |                                             　 //  strlen(s) にすると、i=(111)_2までになる。
      |                                             ^~
a.cc:23:22: error: expected ';' before '}' token
   23 |         ans += tmp;　// 最後の分割部分を足す。
      |                      ^
      |                      ;
   24 |     }
      |     ~
Language: C++

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

int main(){
    string S;
    cin >> S;
    long long ans=0LL; // long long(でかい整数)は0LLで初期化

    for(int i=0; i<(1<<S.size()-1); ++i){ // bit全探索
        string tmp = "";
        tmp += s[0];

        for(int j=0; j<S.size()-1; ++j){ // jはiと同じだけ回す
        // 例えばbitset<4>に対しi=3を表示するなら0011になるが、これはj=1,3の時に引っかかりif内の処理が行われる
            if((i&(1<<j) != 0){
                tmp += "+";
                tmp += S[j+1];
            }else{
                tmp += S[j+1];
            }
        }

        long long ad = 0;
        for(int j=0; j<tmp.size(); ++j){
            if(tmp[j] == '+'){
                ans += ad;
                ad = 0;
            }else{
                ad = 10*ad + (tmp[j] - '0'); // - '0'でsting型をint型に変換
                if(j == tmp.size()-1) ans += ad; // 最後まできたら足す(12+13なら3に引っかかったところで13が足される)
            }
        }
    }

    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: 's' was not declared in this scope
   11 |         tmp += s[0];
      |                ^
a.cc:15:31: error: expected ')' before '{' token
   15 |             if((i&(1<<j) != 0){
      |               ~               ^
      |                               )
a.cc:21:9: error: expected primary-expression before '}' token
   21 |         }
      |         ^
Language: C++

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

int N;
string s;
long long res;
void calc(long long p, long long q){
  long long ret = 0;
  if(p == N){
     res += q;
     return;
  }
  for(int i=p; i<N; ++i){
    ret = 10*ret + (s[i] - '0');
    calc(i+1, q+ret);
  }
  return;
}

int main(){
  ios_base::sync_with_stdio(false); 
  cin >> s;
  N = s.length();
  calc(0, 0);
  cout << res << "\n";
  return 0;
}


Compiler output:
a.cc:1:24: error: missing terminating > character
    1 | #include <bits/stdc++.h
      |                        ^
Language: C++

#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cstring>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <numeric>
#include <utility>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <unordered_map>
using namespace std;

#define REP(i, s) for (int i = 0; i < s; ++i)
#define ALL(v) (v.begin(), v.end())
#define COUT(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << endl
#define EACH(i, s) for (__typeof__((s).begin()) i = (s).begin(); i != (s).end(); ++i)

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<class T1, class T2> ostream& operator << (ostream &s, pair<T1,T2> P)
{ return s << '<' << P.first << ", " << P.second << '>'; }
template<class T> ostream& operator << (ostream &s, vector<T> P)
{ for (int i = 0; i < P.size(); ++i) { if (i > 0) { s << " "; } s << P[i]; } return s; }
template<class T> ostream& operator << (ostream &s, vector<vector<T> > P)
{ for (int i = 0; i < P.size(); ++i) { s << endl << P[i]; } return s << endl; }
template<class T> ostream& operator << (ostream &s, set<T> P)
{ EACH(it, P) { s << "<" << *it << "> "; } return s << endl; }
template<class T1, class T2> ostream& operator << (ostream &s, map<T1,T2> P)
{ EACH(it, P) { s << "<" << it->first << "->" << it->second << "> "; } return s << endl; }

typedef long long  ll;

#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
void algo( string & s, int pocz, long long sum ) {
    if( pocz>=s.size() )
        return;
    long long n=0, x=0;
    for( int i=pocz; i<s.size(); i++ ) {
        n=n*10+s[i]-'0';
        algo( s, i+1, sum+n );
    }
    wy+=sum+n;
}
 
int main()
{
    string s;
    cin >> s;
    algo( s, 0, 0 );
    cout << wy;
    return 0;
}


Compiler output:
a.cc: In function 'void algo(std::string&, int, long long int)':
a.cc:55:5: error: 'wy' was not declared in this scope
   55 |     wy+=sum+n;
      |     ^~
a.cc: In function 'int main()':
a.cc:63:13: error: 'wy' was not declared in this scope
   63 |     cout << wy;
      |             ^~
Language: C++

#include <iostream>

using namespace std;

string s;

long long dfs(int n,long long nw,long long tmp){
  long long ans = nw + tmp * 10 + (s[n] - '0');
  if(s.size()-1 == n){
    return ans;
  }
  return (long long)dfs(n + 1, ans, 0) + dfs(n + 1, nw, ans - nw)); 
}

int main()
{
  cin >> s;
  cout << (long long)dfs(0 ,0 ,0) << endl;
}

Compiler output:
a.cc: In function 'long long int dfs(int, long long int, long long int)':
a.cc:12:66: error: expected ';' before ')' token
   12 |   return (long long)dfs(n + 1, ans, 0) + dfs(n + 1, nw, ans - nw));
      |                                                                  ^
      |                                                                  ;
a.cc:12:66: error: expected primary-expression before ')' token
Language: C++

#define ipair pair<int,int>
#define rep(I,N) for(int I=0; I<N; I++)
#define rrep(I,N) for(int I=N; I>=0; I--)
#define repj(i,j,n) for(int i=j;i<n;i++)
 
#define PB(a,i) (a).push_back(i)
#define ALL(a) (a).begin(),(a).end()
 
#define OK(i) cout<<"OK "<<i<<endl
#define Yes cout<<"Yes"<<endl
#define YES cout<<"YES"<<endl
#define No cout<<"No"<<endl
#define NO cout<<"NO"<<endl
 
int main() {
  char s[11];
  cin >> s;
  int N = strlen(s);
  long res = 0;
 
  rep(i, 1 << (N-1)) {
    long sm = 0;
    long a = s[0] - '0';
    rep(j, N-1) {
      if (i & (1 << j)) {
        sm += a;
        a = 0;
      }
      a = a * 10 + (s[j+1] - '0');
    }
    sm += a;
    res += sm;
  }
 
  printf("%ld\n", res);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:3: error: 'cin' was not declared in this scope
   17 |   cin >> s;
      |   ^~~
a.cc:18:11: error: 'strlen' was not declared in this scope
   18 |   int N = strlen(s);
      |           ^~~~~~
a.cc:1:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
  +++ |+#include <cstring>
    1 | #define ipair pair<int,int>
a.cc:35:3: error: 'printf' was not declared in this scope
   35 |   printf("%ld\n", res);
      |   ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | #define ipair pair<int,int>
Language: C++

s = input().rstrip()
length = len(s) - 1

ans = 0
for i in range(2**length):
    val = 0
    nums = s[:]
    prev_j = 0
    for j in range(length):
        if i >> j & 1:
            val += int(nums[prev_j:j+1])
            prev_j = j+1
    val += int(nums[prev_j:])
    ans += val
print(ans)

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

#include<iostream>
#include<bitset>
using namespace std;
int main(){
    string s;
    cin>>s;
    bitset<9>b(0);
    long ans=0,l,r;
    for(int i=0;i<(1<<s.size()-1);i++){
        b=i;
        l=0,r=1;
        for(int i=0;i<s.size();i++,r++,b>>=1)if(b[0])ans+=stol(s.substr(l,r-l)),l=r;
        ans+=stol(s.substr(l,r-l));
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include <iostream>
#include <string>
#include <cmath>

using namespace std;
typedef long long ll;

string s;

ll Sum(int pre, int now, ll sum) {
	ll ans = 0;
	for (int i = 0; i < now - pre; i++)
		ans += (s[now - i] - '0')*ll(pow(10, i));
	if (now == s.size() - 1)
		return ans + sum;
	return Sum(pre, now + 1, sum) + Sum(now, now + 1, sum + ans);
}

int main(void) {
	cin >> s;
	cout << Sum(-1, 0, 0) << "\n";
	return 0;
}

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

#include <iostream>
#include <string>

using namespace std;
typedef long long ll;

string s;

ll Sum(int pre, int now, ll sum) {
	ll ans = 0;
	for (int i = 0; i < now - pre; i++)
		ans += (s[now - i] - '0')*ll(pow(10, i));
	if (now == s.size() - 1)
		return ans + sum;
	return Sum(pre, now + 1, sum) + Sum(now, now + 1, sum + ans);
}

int main(void) {
	cin >> s;
	cout << Sum(-1, 0, 0) << "\n";
	return 0;
}

Compiler output:
a.cc: In function 'll Sum(int, int, ll)':
a.cc:12:46: error: 'pow' was not declared in this scope; did you mean 'now'?
   12 |                 ans += (s[now - i] - '0')*ll(pow(10, i));
      |                                              ^~~
      |                                              now
Language: C++

// 挑戦中なので、わざと間違っている

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

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

int main(){
    char s[11];
    scanf("%s",s);

    int i,j;

    long long ans=0;
    long long tmp;  // ’＋’で分割したものを代入
    for(i=0;i<( 1 << ( strlen(s) - 1 ) );i++){ //　S="125"なら、i=(00)_2～(11)_2まで。
                                            　 //  strlen(s) にすると、i=(111)_2までになる。
        tmp = s[0] - '0';                       //　Sの１文字目を数値に変換して代入
        for(j=0;j<( strlen(s) - 1 );j++){
            if( i & ( 1 << j ) ){       //　例：(i,j)=(0,1) ⇒ (00) AND (10)
                ans += tmp;             //        　　    　⇒ (10) ⇒ 12 + 5
                tmp = 0;                //  分割した分を足して、tmpを初期化
            }
            tmp = tmp*10 + (s[j+1] - '0');
        }
        ans += tmp;　// 最後の分割部分を足す。
    }

    printf("%lld",ans);

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:14:45: error: stray '\343' in program
   14 |                                             <U+3000> //  strlen(s) <U+306B><U+3059><U+308B><U+3068><U+3001>i=(111)_2<U+307E><U+3067><U+306B><U+306A><U+308B><U+3002>
      |                                             ^~~~~~~~
main.c:23:20: error: stray '\343' in program
   23 |         ans += tmp;<U+3000>// <U+6700><U+5F8C><U+306E><U+5206><U+5272><U+90E8><U+5206><U+3092><U+8DB3><U+3059><U+3002>
      |                    ^~~~~~~~
Language: C++

def main():
    S = input()
    n = len(S)-1

    val_sum = 0
    for i in range(2**n):
        idx = 0
        for j in range(n):
            if 1 & (i >> j) == 1:
                val_sum += int(S[idx:j+1])
                idx = j+1
        val_sum += int(S[idx:])

    print(val_sum)


if __name__ == "__main__":
    main()


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

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

int main(){
  string s; cin>>s;
  long long ans=0,t;
  for(int i=0;i<(1<<s.size-1);i++){
    t=s[0]-'0';
    for(int j=0;j<s.size();j++){
      if(j==s.size()-1||i&1<<j){
        ans+=t;
        t=0;
      }
      t*=10;
      t+=s[j+1]-'0';
    }
  }
  cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:23: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
    8 |   for(int i=0;i<(1<<s.size-1);i++){
      |                     ~~^~~~
      |                           ()
Language: C++

#include<iostream>
using namespace std;
int k(int a) {
  int k = 0;
  while(a) {
    a /= 10;
    k ++;
  }
  return k;
}
int main () {
  int N;
  cin >> N;
  int bi[10];
  bi[0] = 1;
  
  for (int i = 0; i < 9; i ++) bi[i + 1] = bi[i] * 2;
  int ju = keta(N);
  int ans = 0;
  for (int i_ = 0; i_ < bi[ju]; i_ ++) {
    int i = i_
    int a = N;
    int b = 10;
    for (int j = 0; j < ju; j ++) {
      if (i % 2) {
        ans += a % b;
        a /= b;
      }
      i /= 2;
    }
    ans += a;
  }
  cout << ans << endl;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:18:12: error: 'keta' was not declared in this scope
   18 |   int ju = keta(N);
      |            ^~~~
a.cc:22:5: error: expected ',' or ';' before 'int'
   22 |     int a = N;
      |     ^~~
a.cc:26:16: error: 'a' was not declared in this scope
   26 |         ans += a % b;
      |                ^
a.cc:31:12: error: 'a' was not declared in this scope
   31 |     ans += a;
      |            ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <bitset>
#include <cmath>
#include <iomanip>
#include <string>

typedef  long long ll;

using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    string s; cin >> s;
    reverse(s.begin(), s.end());
    ll l = s.size(), sum = 0;

    if (n = 1){
        cout << s[0] - '0'; //数字に変換
        return 0;
    }

    for(int i = 0; i < (1 << l - 1); i++)
    {
        ll tmp = 1;
        sum += s[0] - '0';
        for(int j = 0; j < n - 1; j++){
            if(i & (1 << j)) tmp = 1;
            else tmp *= 10;
            sum += tmp * (s[j + 1] - '0');
        }
        tmp = 1;
    }
    
    cout << sum << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:9: error: 'n' was not declared in this scope
   21 |     if (n = 1){
      |         ^
a.cc:30:28: error: 'n' was not declared in this scope
   30 |         for(int j = 0; j < n - 1; j++){
      |                            ^
Language: C++

//file_name:ABC45_C.cpp
#include <bits/stdc++.h>
#define fi first
#define se second
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define rrep(i,n) for(int i = 1; i <= (n); ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define rng(a) a.begin(),a.end()
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define limit(x,l,r) max(l,min(x,r))
#define lims(x,l,r) (x = max(l,min(x,r)))
#define isin(x,l,r) ((l) <= (x) && (x) < (r))
#define pb push_back
#define sz(x) (int)(x).size()
#define pcnt __builtin_popcountll
#define uni(x) x.erase(unique(rng(x)),x.end())
#define snuke srand((unsigned)clock()+(unsigned)time(NULL));
#define show(x) cout<<#x<<" = "<<x<<endl;
#define PQ(T) priority_queue<T,v(T),greater<T> >
#define bn(x) ((1<<x)-1)
#define dup(x,y) (((x)+(y)-1)/(y))
#define newline puts("")
#define v(T) vector<T>
#define vv(T) v(v(T))
using namespace std;
typedef long long int ll;
typedef unsigned uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vl;
typedef vector<P> vp;
inline int in() { int x; scanf("%d",&x); return x;}
template<typename T>inline istream& operator>>(istream&i,v(T)&v)
{rep(j,sz(v))i>>v[j];return i;}
template<typename T>string join(const v(T)&v)
{stringstream s;rep(i,sz(v))s<<' '<<v[i];return s.str().substr(1);}
template<typename T>inline ostream& operator<<(ostream&o,const v(T)&v)
{if(sz(v))o<<join(v);return o;}
template<typename T1,typename T2>inline istream& operator>>(istream&i,pair<T1,T2>&v)
{return i>>v.fi>>v.se;}
template<typename T1,typename T2>inline ostream& operator<<(ostream&o,const pair<T1,T2>&v)
{return o<<v.fi<<","<<v.se;}
template<typename T>inline ll suma(const v(T)& a) { ll res(0); for (auto&& x : a) res += x; return res;}
const double eps = 1e-10;
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
#define dame { puts("-1"); return 0;}
#define yn {puts("Yes");}else{puts("No");}
const int MX = 200005;

    // int scan
    /*
    int x;
    scanf("%d",&x);
    int y;
    scanf("%d",&y);
    int z;
    scanf("%d",&z);

    // matrix scan
    /*
    ll a[n] = {};
    rep(i,n){
        scanf("%lld",&a[i]);
    }
    */

    // string scan
    /*
    string s;
    cin >> s;
    */


int main() {
    ll n;
    scanf("%lld",&n);

    int keta = 0;
    ll nn = n;
    while(nn>0){
        keta++;
        nn/=10;
    }

    ll ans = 0;

    rep(i,keta){
        rep()
    }

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



Compiler output:
a.cc:93:13: error: macro "rep" requires 2 arguments, but only 1 given
   93 |         rep()
      |             ^
a.cc:5:9: note: macro "rep" defined here
    5 | #define rep(i,n) for(int i = 0; i < (n); ++i)
      |         ^~~
a.cc: In function 'int main()':
a.cc:93:9: error: 'rep' was not declared in this scope
   93 |         rep()
      |         ^~~
Language: C++

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

long long ctoi(char num) {
	return num - '0';
}

long long eval(vector<char>s) {
	vector<long long> num; vector<char>ope;
	long long number = ctoi(s[0]);
	for (int i = 1; i < s.size(); i++) {
		if (s[i] == '+') {
			ope.push_back('+');
			num.push_back(number);
			number = 0;
		}
		else if (s[i] == '-') {
			ope.push_back('-');
			num.push_back(number);
			number = 0;
		}
		else {
			number = number * 10 + ctoi(s[i]);
		}
		if (i == s.size() - 1) {
			num.push_back(number);
		}
	}
	long long ans = num[0];
	for (int i = 1; i < num.size(); i++) {
		if (ope[i - 1] == '+') {
			ans += num[i];
		}
		else if (ope[i - 1] == '-') {
			ans -= num[i];
		}
	}
	return ans;
}

int main() {
	string s;
	cin >> s;
	vector<char> k;
	int num;
	long long ans = 0;
	for (int i = 0; i < pow(2, s.length()-1); i++) {
		num = i;
		k = {};
		for (int j = 0; j < s.length()-1; j++) {
			k.push_back(s[j]);
			if (num % 2 == 1) {
				k.push_back('+');
			}
			num /= 2;
		}
		k.push_back(s[s.length() - 1]);
		ans += eval(k);
		k = {};
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:29: error: 'pow' was not declared in this scope
   49 |         for (int i = 0; i < pow(2, s.length()-1); i++) {
      |                             ^~~
Language: C++

S=input()
ans=0
for i in range(2**(len(S)-1)):
    tmp=S[0]
    for j in range(len(S)-1):
        if i&(1<<j):tmp+="+"
        tmp+=S[j+1]
    ans+=eval(tmp)
print(ans)

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

#include <iostream>
#include <set>
#include <map>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <numeric>

using namespace std;
typedef long long ll;
const ll mod = 1e9 + 7;

int main(int argc, const char * argv[]) {
  string s;
  cin >> s;
  int a[20];
  memset(a, 0, sizeof(a));
  
  for (int i = 0; i < s.size(); i++) {
    a[i] = s[i] - '0';
  }
  
  int n = s.size() -1;
  ll ans = 0;
  for (int i = 0; i < (1 << n); i++) {
    ll t = a[0];
    for (int j = n - 1; j >= 0; j--) {
      if (i & (1 << j)) {
        ans += t;
        t = a[n - j];
      } else {
        t = t * 10 + a[n - j];
      }
    }
    ans += t;
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:17:3: error: 'memset' was not declared in this scope
   17 |   memset(a, 0, sizeof(a));
      |   ^~~~~~
a.cc:8:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    7 | #include <numeric>
  +++ |+#include <cstring>
    8 |
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int  main()
{
    string s;
    cin>>s;
    int len = s.size();
    int n = 1<<(len-1);
   ll sum = 0;
    for(int i=0 ; i<n; i++)
    {

        int cnt = s[0] - '0';//将字符ascii转换

        for(int j=0; j<len; j++)
        {
            if(j==len-1||i&1<<j)//从左往右数去i+1上那一个值
            {

                ll +=cnt;
                cnt = 0;//加完后清0
                if(j==len-1)
                {
                    break;
                }
            }
            cnt*=10;
            cnt+=s[j+1]-'0';
        }
    }
    cout<<sum<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:20: error: expected unqualified-id before '+=' token
   21 |                 ll +=cnt;
      |                    ^~
Language: C++

ans = 0
 
def dfs(S, i, cur, sum_v):
    global ans
    if i == len(S)-1:
        ans += sum_v
        return 
    dfs(S, i+1, int(S[i+1]), sum_v+int(S[i+1]))
    dfs(S, i+1, cur*10+int(S[i+1]), sum_v+cur*9+int(S[i+1]))
 
S = input()
dfs(S, 0, int(S[0]), int(S[0]))
print(ans)


Compiler output:
a.cc:1:1: error: 'ans' does not name a type
    1 | ans = 0
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define MM 1000000000;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 1000000005
#define NIL -1
ll mod = 1e9+7;
int dx[] = {0, 1, 0, -1};
int dy[] = {1, 0, -1, 0};
int dp[201010];
int main(){
    string s; cin >> s;
    ll ans = atoi(s);
    for(int i = 1; i < s.size(); i++){
        string t = s.substr(0, i);
        string u = s.substr(i, s.size()-i);
        ans += atoi(t)+atoi(u);
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:19: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   15 |     ll ans = atoi(s);
      |                   ^
      |                   |
      |                   std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:105:30: note:   initializing argument 1 of 'int atoi(const char*)'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
a.cc:19:21: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   19 |         ans += atoi(t)+atoi(u);
      |                     ^
      |                     |
      |                     std::string {aka std::__cxx11::basic_string<char>}
/usr/include/stdlib.h:105:30: note:   initializing argument 1 of 'int atoi(const char*)'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
a.cc:19:29: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   19 |         ans += atoi(t)+atoi(u);
      |                             ^
      |                             |
      |                             std::string {aka std::__cxx11::basic_string<char>}
/usr/include/stdlib.h:105:30: note:   initializing argument 1 of 'int atoi(const char*)'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
Language: C++

#include <iostream>
#include <string.h>
using namespace std;
int main(void){
   char str[15];
   cin>>str;
   int N;
   int ans=0;
   N=strlen(str);
   for(int i=0;i<(1<<(N-1));i++){
       int add=s[0]-'0';
       int sum=0;
       for(int j=0;j<N-1;j++){
           if(i&(1<<j)){
               sum+=a;
               add=0;
           }
           add=add*10+s[j]-'0';
       }
       sum+=add;
       ans+=sum;
   }
   cout<<ans;
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: 's' was not declared in this scope
   11 |        int add=s[0]-'0';
      |                ^
a.cc:15:21: error: 'a' was not declared in this scope
   15 |                sum+=a;
      |                     ^
Language: C++

#include <cstdio>
#include <vector>
#include <algorithm>
#include <iostream>
#include <cstring>
using namespace std ;

typedef long long ll ;
#define rep (i , n ) for ( int i =0; i < n ; i++)
#define _sort(arg) sort(begin(arg), end(arg))
#define MOD 1000000007
#define pb push_back
#define DEBUG(x) cout << #x << ": " << x << endl;

/*
__attribute__((constructor))
void initial()
{
	cin.tie(NULL);
	ios::sync_with_stdio(false);
}
*/

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

	ll s;
	
	cin >> s;
	int n = s.size();
	
	ll c = 0;

	for (int i = 0; i < (1 << (n-1)); i++)
	{
		ll num = s[0] - '0';
		for(int j = 0; j < n-1; j++)
		{
			if (i & (1<<j))
			{
				c+=num;
				num=0;
			}
			num = num * 10 + (s[j+1] - '0');
		}
		c+=num;
	}
	cout << c << endl;

	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:19: error: request for member 'size' in 's', which is of non-class type 'll' {aka 'long long int'}
   32 |         int n = s.size();
      |                   ^~~~
a.cc:38:27: error: invalid types 'll {aka long long int}[int]' for array subscript
   38 |                 ll num = s[0] - '0';
      |                           ^
a.cc:46:44: error: invalid types 'll {aka long long int}[int]' for array subscript
   46 |                         num = num * 10 + (s[j+1] - '0');
      |                                            ^
Language: C++

s = input()
ans = 0
for i in range((len(s) - 1) ** 2):
    tmp = ''
    for j in range(len(s)):
        tmp += s[j]
        if i >> j & 1:
            tmp += '+'
    else:
        ans += eval(tmp)
else:
    print(ans)

Compiler output:
a.cc:4:11: error: empty character constant
    4 |     tmp = ''
      |           ^~
a.cc:1:1: error: 's' does not name a type
    1 | s = input()
      | ^
Language: C

#include<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
	string g,p,q;
	long long x=0,a,b,i;
	cin>>g;
	for(i=0;i<g.length();i++)
	{
		p=g.substr(0,i);
		q=g.substr(0+i,g.length()-(0+i));
		a=atoi( p.c_str() );
		b=atoi( q.c_str() );
		x=x+a+b;
	}
	if(atoi(g.c_str())>=10)
		for(i=0;i<g.length();i++)
		{
			a=g[i]-'0';
			x+=a;
		}
	printf("%lld",x);
	return 0;
}

Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<list>
#include<cmath>
#include<map>
using namespace std;
using ll = long long;
const int INF = 1e9;
#define rep(i,n)for(int i=0;i<n;++i)
#define p pair<int,int>
int main() {
	string S;
	cin >> S;
	ll ans = 0;
	for (int i = 0; i < 1 << S.size() - 1; ++i) {
		ll sm = 0;
		ll a = S[0] - '0';
		rep(j, 0, S.size() - 1) {
			if (i&(1 << j)) {
				sm += a;
				a = 0;
			}
			a = a * 10 + S[j - 1] - '0';
		}
		sm += a;
		ans += sm;

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

Compiler output:
a.cc:20:39: error: macro "rep" passed 3 arguments, but takes just 2
   20 |                 rep(j, 0, S.size() - 1) {
      |                                       ^
a.cc:11:9: note: macro "rep" defined here
   11 | #define rep(i,n)for(int i=0;i<n;++i)
      |         ^~~
a.cc: In function 'int main()':
a.cc:20:17: error: 'rep' was not declared in this scope
   20 |                 rep(j, 0, S.size() - 1) {
      |                 ^~~
Language: C++

#include<stdio.h>
#include<iostream>
#include<string.h>
#include<cmath>
using namespace std;
char s[15];
int n;
long long int sum=0,op,p,q;
int main()
{
	int i,j,k;
	//freopen("we.in","r",stdin);
	//freopen("we.out","w",stdout);
	gets(s+1);
	n=strlen(s+1);
	for(i=1;i<=n;i++)
	s[i]-=48;
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=n;j++)
		{
			op=0;
			for(k=i;k<=j;k++)
            op=op*10+s[k];
			if(i==1)
			p=1;
			else p=pow(2,i-2);
			if(j==n)
			q=1;
			else q=pow(2,n-j-1);
			sum+=p*q*op;
		}
	}
	cout<<sum<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   14 |         gets(s+1);
      |         ^~~~
      |         getw
Language: C++

#include<iostream>
using namespace std;
typedef long long ll;

int main(){
  string s;
  cin >>s;
  int N=s.size();
  ll ans=0;
  for(int i=0;i<N;i++){
    ll num=s[0] - '0';
    for(int j=0;j<n-1;j++){
      if(i&(1<<j)){
	ans += num;
	num=0;
      }
      num = num * 10 +a[j+1] - '0';
    }
    ans += num;
  }
  cout << ans << ensdl;
} 


Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: 'n' was not declared in this scope
   12 |     for(int j=0;j<n-1;j++){
      |                   ^
a.cc:17:23: error: 'a' was not declared in this scope
   17 |       num = num * 10 +a[j+1] - '0';
      |                       ^
a.cc:21:18: error: 'ensdl' was not declared in this scope
   21 |   cout << ans << ensdl;
      |                  ^~~~~
Language: C++

#include<iostream>
using namespace std;

int main() {
	string s;
	cin >> s;
	int n = s.size();
	long long ans = 0;
	for (int i = 0;i < 1 << n - 1; i++) {
		long long num = s[0] - '0';
		for (int i = 0;i < n - 1;i++) {
			if (t & (1 << i)) {
				ans += num;
				num = 0;
			}
			num = num * 10 + s[i + 1] - '0';
		}
		ans += num;
	}
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:29: error: 't' was not declared in this scope
   12 |                         if (t & (1 << i)) {
      |                             ^
Language: C++

#include <iostream>
#include <cstdint>
#include <string>
#include <vector>
#include <iterator>
#include <algorithm>

int main() {
  std::string s;
  std::cin >> s;
  std::vector<std::int_fast64_t> digits;
  std::transform(s.begin(), s.end(), std::back_inserter(digits), [](const char c) {
    return std::stoi(std::string({c}));
  });

  std::int_fast64_t result = 0;
  for (std::uint_fast64_t bit_flags = 0; bit_flags < tools::pow2<std::uint_fast64_t>(digits.size() - 1); ++bit_flags) {
    std::int_fast64_t buffer = 0;
    for (std::int_fast64_t i = 0; i < static_cast<std::int_fast64_t>(digits.size()) - 1; ++i) {
      buffer = 10 * buffer + digits[i];
      if ((bit_flags & tools::pow2<std::uint_fast64_t>(i)) != 0) {
        result += buffer;
        buffer = 0;
      }
    }
    buffer = 10 * buffer + digits.back();
    result += buffer;
  }

  std::cout << result << std::endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:54: error: 'tools' has not been declared
   17 |   for (std::uint_fast64_t bit_flags = 0; bit_flags < tools::pow2<std::uint_fast64_t>(digits.size() - 1); ++bit_flags) {
      |                                                      ^~~~~
a.cc:17:84: error: expected primary-expression before '>' token
   17 |   for (std::uint_fast64_t bit_flags = 0; bit_flags < tools::pow2<std::uint_fast64_t>(digits.size() - 1); ++bit_flags) {
      |                                                                                    ^
a.cc:21:24: error: 'tools' has not been declared
   21 |       if ((bit_flags & tools::pow2<std::uint_fast64_t>(i)) != 0) {
      |                        ^~~~~
a.cc:21:54: error: expected primary-expression before '>' token
   21 |       if ((bit_flags & tools::pow2<std::uint_fast64_t>(i)) != 0) {
      |                                                      ^
Language: C++

#include <bits/stdc++.h>
//#include <mylib.h>
using namespace std;
//cin.sync_with_stdio(false);

#define FOR(i,a,b) for(int i = (a); i < (b); ++i)
#define FOR_EQ(i,a,b) for(int i = (a); i <= (b); ++i)
#define FOR_RE(i,a,b) for(int i = (a); i > (b); --i)
#define rep(i,n) FOR(i,0,n)
#define rep_eq(i,n) FOR_EQ(i,0,n)
#define rep_re(i,n) FOR_RE(i,n,0)
//1個上から時計周り
const int ddx[8] = {0, 1, 1, 1, 0, -1, -1, -1};
const int ddy[8] = {1, 1, 0, -1, -1, -1, 0, 1};
//上右下左
const int dx[4] = {0, 1, 0, -1};
const int dy[4] = {1, 0, -1, 0};

typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> Vector;
typedef vector<Vector>	DVector;
int n;

int main(int argc, char const *argv[])
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    string S;
    cin >> S;
    n = S.length();
    
    ll ans = 0;
    rep(i, 1 << (n - 1)) {
        ll sm = 0;
        ll a = S[0] - '0';
        rep(j, N - 1) {
            if (i & (1 << j)) {
                sm += a;
                a = 0;
            }
            a = a * 10 + S[j + 1] - '0';
        }
        sm += a;
        ans += sm;
    }
    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:38:16: error: 'N' was not declared in this scope
   38 |         rep(j, N - 1) {
      |                ^
a.cc:6:42: note: in definition of macro 'FOR'
    6 | #define FOR(i,a,b) for(int i = (a); i < (b); ++i)
      |                                          ^
a.cc:38:9: note: in expansion of macro 'rep'
   38 |         rep(j, N - 1) {
      |         ^~~
Language: C++

#include<cstdio>
#include<cmath>
#include<algorithm>
#include<cstring>
using namespace std;
char s[102];
long long ans,n,t;
long long ww(int b,int l)
{
	int ret=0,e=b+l-1;
	for(int i=b;i<=e;i++)
		ret=ret*10+s[i]-'0';
	return ret;
}
int main()
{
	scanf("%s",s+1);
	int len=strlen(s+1);
	sscanf(s+1,"%lld",&n);
    for(int i=1;i<=len;i++)
        for(int j=1;j+i-1<=len;j++)
		{
            int c=len-i-1;
            if(1<j&&j<len-i+1)
                c--;
            max(0,c)
            t=ww(j,i)*pow(2,c);
            ans+=t;
        }
	printf("%lld",ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:21: error: expected ';' before 't'
   26 |             max(0,c)
      |                     ^
      |                     ;
   27 |             t=ww(j,i)*pow(2,c);
      |             ~        
a.cc:26:16: warning: ignoring return value of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&) [with _Tp = int]', declared with attribute 'nodiscard' [-Wunused-result]
   26 |             max(0,c)
      |             ~~~^~~~~
In file included from /usr/include/c++/14/bits/specfun.h:43,
                 from /usr/include/c++/14/cmath:3906,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: declared here
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~