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

int main()
{
  int a,b;
  int count1=0,count2=0;
  int sum;
  while(scanf("%d%d",&a,&b)!= EOF)
  {
   while(a < 1000000 && a>0)
    {
     a /= 10;
     count1++;
    }
   while(b < 1000000 && b>0)
    {
     b /= 10;
     count2++;
    }
   sum = count1+count2;
   printf("%d\n",sum);
   count1=0;
   count2=0;
   sum=0;

  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'scanf' was not declared in this scope
    6 |   while(scanf("%d%d",&a,&b)!= EOF)
      |         ^~~~~
a.cc:6:31: error: 'EOF' was not declared in this scope
    6 |   while(scanf("%d%d",&a,&b)!= EOF)
      |                               ^~~
a.cc:1:1: note: 'EOF' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main()
a.cc:19:4: error: 'printf' was not declared in this scope
   19 |    printf("%d\n",sum);
      |    ^~~~~~
a.cc:19:4: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
	int a,b;
while(eof){
	}
	int n=a+b;
	if (n>99999){	
	cout<<6<<endl;
}
	else if(n>9999){
		cout<<5<<endl;
	}
		else if(n>999){
		cout<<4<<endl;
	}
		else if(n>99){
		cout<<3<<endl;
		}
		else if(n>9){
		cout<<2<<endl;
	}
	else{ 
	cout<<1<<endl;
	}
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'eof' was not declared in this scope; did you mean 'feof'?
    7 | while(eof){
      |       ^~~
      |       feof
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
	int a,b;
while(not eof){
	}
	int n=a+b;
	if (n>99999){	
	cout<<6<<endl;
}
	else if(n>9999){
		cout<<5<<endl;
	}
		else if(n>999){
		cout<<4<<endl;
	}
		else if(n>99){
		cout<<3<<endl;
		}
		else if(n>9){
		cout<<2<<endl;
	}
	else{ 
	cout<<1<<endl;
	}
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 'eof' was not declared in this scope; did you mean 'feof'?
    7 | while(not eof){
      |           ^~~
      |           feof
Language: C++

int digits(int x)
{
  if (x < 10)
    return 1;
  else
    return 1 + digits(x / 10);
}

int main(int argc, char **argv)
{
  int a, b;
  while (cin >> a >> b) {
    cout << digits(a+b) << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:12:10: error: 'cin' was not declared in this scope
   12 |   while (cin >> a >> b) {
      |          ^~~
a.cc:13:5: error: 'cout' was not declared in this scope
   13 |     cout << digits(a+b) << endl;
      |     ^~~~
a.cc:13:28: error: 'endl' was not declared in this scope
   13 |     cout << digits(a+b) << endl;
      |                            ^~~~
Language: C++

#include<cstdio>
#include<math.h>

using namespace std;

int countDigit(int num){
	int i;
	for(i=1;pow(10,i)<=num;i++);
	return i;
}

int main(){
    int i,a,b;
    while(true)
        scanf("%d %d",&a,&b);
        printf("%d\n",countDigit(a+b));
    }
    return 0;
}

Compiler output:
a.cc:18:5: error: expected unqualified-id before 'return'
   18 |     return 0;
      |     ^~~~~~
a.cc:19:1: error: expected declaration before '}' token
   19 | }
      | ^
Language: C++

#include<cstdio>
#include<math.h>

using namespace std;

int countDigit(int num){
	int i;
	for(i=1;pow(10,i)<=num;i++);
	return i;
}

int main(){
    int i,a,b;
    while(1)
        scanf("%d %d",&a,&b);
        printf("%d\n",countDigit(a+b));
    }
    return 0;
}

Compiler output:
a.cc:18:5: error: expected unqualified-id before 'return'
   18 |     return 0;
      |     ^~~~~~
a.cc:19:1: error: expected declaration before '}' token
   19 | }
      | ^
Language: C++

#include<stdio.h>
#include<iostream>
using namespace std;
int main(void)
{
    __int64 a,b;
    while(scanf("%I64d %I64d",&a,&b)!=EOF)
    {
       __int64 sum;
       sum=a+b;
       int j=0;
       while(sum!=0)
       {
         sum/=10;
         j++;
       }
       printf("%d\n",j);
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: '__int64' was not declared in this scope; did you mean '__int64_t'?
    6 |     __int64 a,b;
      |     ^~~~~~~
      |     __int64_t
a.cc:7:32: error: 'a' was not declared in this scope
    7 |     while(scanf("%I64d %I64d",&a,&b)!=EOF)
      |                                ^
a.cc:7:35: error: 'b' was not declared in this scope
    7 |     while(scanf("%I64d %I64d",&a,&b)!=EOF)
      |                                   ^
a.cc:9:15: error: expected ';' before 'sum'
    9 |        __int64 sum;
      |               ^~~~
      |               ;
a.cc:10:8: error: 'sum' was not declared in this scope
   10 |        sum=a+b;
      |        ^~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
 int a, b;

 while(cin >> a >> b){
  int mas = a + b;
  int n = 0
  while(mas /= 10 != 0) n++
  cout << n+1 << '\n';
 }

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: expected ',' or ';' before 'while'
   11 |   while(mas /= 10 != 0) n++
      |   ^~~~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
 int a, b;

 while(cin >> a >> b){
  int mas = a + b;
  int n = 0
  while(mas /= 10 != 0) n++;
  cout << n+1 << '\n';
 }

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: expected ',' or ';' before 'while'
   11 |   while(mas /= 10 != 0) n++;
      |   ^~~~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
 int a, b;

 while(cin >> a >> b){
  int mas = a + b;
  int n = 0
  while(true){
   n++;
   mas /= 10;

   if(mas == 0) break;
  }
  cout << n << '\n';
 }

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: expected ',' or ';' before 'while'
   11 |   while(true){
      |   ^~~~~
Language: C++

#include <stdio.h>
#define N 16
int main(){
	char temp[N];
	int a[200],b[200];
	int i,j,k,n;
	char t[N];
	for(i=0;i<200;i++){
		fgets(temp,N,stdin);
		if(temp[1]!='\0'){
			sscanf_s(temp,"%d %d",&a[i],&b[i]);
		}else{
			j=i;
			break;
		}
		//j=scanf_s("%d %d",&a[i],&b[i]);
		//gets(t);
	}
	for(i=0;i<j;i++){
		k=1,n=0;
		while(a[i]+b[i]>=k){
			k*=10;
			n+=1;
		}
		printf("%d\n",n);
	}
	getchar();
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:25: error: 'sscanf_s' was not declared in this scope; did you mean 'sscanf'?
   11 |                         sscanf_s(temp,"%d %d",&a[i],&b[i]);
      |                         ^~~~~~~~
      |                         sscanf
Language: C++

#include <stdio.h>
#define N 16
int main(){
	char temp[N];
	int a[200],b[200];
	int i,j,k,n;
	for(i=0;i<200;i++){
		fgets(temp,N,stdin);
		if(temp[1]!='\0'){
			sscanf_s(temp,"%d %d",&a[i],&b[i]);
		}else{
			j=i;
			break;
		}
	}
	for(i=0;i<j;i++){
		k=1,n=0;
		while(a[i]+b[i]>=k){
			k*=10;
			n+=1;
		}
		printf("%d\n",n);
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:25: error: 'sscanf_s' was not declared in this scope; did you mean 'sscanf'?
   10 |                         sscanf_s(temp,"%d %d",&a[i],&b[i]);
      |                         ^~~~~~~~
      |                         sscanf
Language: C++

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace project
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            string[] numbers=input.Split(' ');
            int  answer = Convert.ToInt16(numbers[0] + numbers[1]);
            string amswer1 = Convert.ToString(answer);
            Console.WriteLine((amswer1.Length)+1);
        }
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Text;
      |       ^~~~~~
a.cc:5:7: error: expected nested-name-specifier before 'System'
    5 | using System.Threading.Tasks;
      |       ^~~~~~
a.cc:11:26: error: 'string' has not been declared
   11 |         static void Main(string[] args)
      |                          ^~~~~~
a.cc:11:35: error: expected ',' or '...' before 'args'
   11 |         static void Main(string[] args)
      |                                   ^~~~
a.cc:19:6: error: expected ';' after class definition
   19 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void project::Program::Main(int*)':
a.cc:13:13: error: 'string' was not declared in this scope
   13 |             string input = Console.ReadLine();
      |             ^~~~~~
a.cc:14:20: error: expected primary-expression before ']' token
   14 |             string[] numbers=input.Split(' ');
      |                    ^
a.cc:15:27: error: 'Convert' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0] + numbers[1]);
      |                           ^~~~~~~
a.cc:15:43: error: 'numbers' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0] + numbers[1]);
      |                                           ^~~~~~~
a.cc:16:20: error: expected ';' before 'amswer1'
   16 |             string amswer1 = Convert.ToString(answer);
      |                    ^~~~~~~
a.cc:17:13: error: 'Console' was not declared in this scope
   17 |             Console.WriteLine((amswer1.Length)+1);
      |             ^~~~~~~
a.cc:17:32: error: 'amswer1' was not declared in this scope; did you mean 'answer'?
   17 |             Console.WriteLine((amswer1.Length)+1);
      |                                ^~~~~~~
      |                                answer
Language: C++

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace project
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            string[] numbers=input.Split(' ');
            int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
             string amswer1 = Convert.ToString(answer);
            Console.WriteLine((amswer1.Length));
        }
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Text;
      |       ^~~~~~
a.cc:5:7: error: expected nested-name-specifier before 'System'
    5 | using System.Threading.Tasks;
      |       ^~~~~~
a.cc:11:26: error: 'string' has not been declared
   11 |         static void Main(string[] args)
      |                          ^~~~~~
a.cc:11:35: error: expected ',' or '...' before 'args'
   11 |         static void Main(string[] args)
      |                                   ^~~~
a.cc:19:6: error: expected ';' after class definition
   19 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void project::Program::Main(int*)':
a.cc:13:13: error: 'string' was not declared in this scope
   13 |             string input = Console.ReadLine();
      |             ^~~~~~
a.cc:14:20: error: expected primary-expression before ']' token
   14 |             string[] numbers=input.Split(' ');
      |                    ^
a.cc:15:27: error: 'Convert' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
      |                           ^~~~~~~
a.cc:15:43: error: 'numbers' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
      |                                           ^~~~~~~
a.cc:16:21: error: expected ';' before 'amswer1'
   16 |              string amswer1 = Convert.ToString(answer);
      |                     ^~~~~~~
a.cc:17:13: error: 'Console' was not declared in this scope
   17 |             Console.WriteLine((amswer1.Length));
      |             ^~~~~~~
a.cc:17:32: error: 'amswer1' was not declared in this scope; did you mean 'answer'?
   17 |             Console.WriteLine((amswer1.Length));
      |                                ^~~~~~~
      |                                answer
Language: C++

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace project
{
    class Test
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            string[] numbers=input.Split(' ');
            int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
             string amswer1 = Convert.ToString(answer);
            Console.WriteLine((amswer1.Length));
        }
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Text;
      |       ^~~~~~
a.cc:5:7: error: expected nested-name-specifier before 'System'
    5 | using System.Threading.Tasks;
      |       ^~~~~~
a.cc:11:26: error: 'string' has not been declared
   11 |         static void Main(string[] args)
      |                          ^~~~~~
a.cc:11:35: error: expected ',' or '...' before 'args'
   11 |         static void Main(string[] args)
      |                                   ^~~~
a.cc:19:6: error: expected ';' after class definition
   19 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void project::Test::Main(int*)':
a.cc:13:13: error: 'string' was not declared in this scope
   13 |             string input = Console.ReadLine();
      |             ^~~~~~
a.cc:14:20: error: expected primary-expression before ']' token
   14 |             string[] numbers=input.Split(' ');
      |                    ^
a.cc:15:27: error: 'Convert' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
      |                           ^~~~~~~
a.cc:15:43: error: 'numbers' was not declared in this scope
   15 |             int  answer = Convert.ToInt16(numbers[0]) +Convert.ToInt16( numbers[1]);
      |                                           ^~~~~~~
a.cc:16:21: error: expected ';' before 'amswer1'
   16 |              string amswer1 = Convert.ToString(answer);
      |                     ^~~~~~~
a.cc:17:13: error: 'Console' was not declared in this scope
   17 |             Console.WriteLine((amswer1.Length));
      |             ^~~~~~~
a.cc:17:32: error: 'amswer1' was not declared in this scope; did you mean 'answer'?
   17 |             Console.WriteLine((amswer1.Length));
      |                                ^~~~~~~
      |                                answer
Language: C++

#include<string>
#include<iostream>

using namespace std;


int main()
{
	int a, b;
	cin >> a >> b;
	while (a != -1){
		int c = log10(a + b) + 1;
		cout << c << endl;
		cin >> a >> b;
	}
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:25: error: 'log10' was not declared in this scope
   12 |                 int c = log10(a + b) + 1;
      |                         ^~~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
    int a,b,c;
    do{
    cin >> a >> b;
    c = a+b;
    if (c>1000000)
        cout << "7" << endl;
    else if (c>100000)
        cout << "6" << endl;
    else if (c>10000)
        cout << "5" << endl;
    else if (c>1000)
        cout << "4" << endl;
    else if (c>100)
        cout << "3" << endl;
    else if (c>10)
        cout << "2" << endl;
    else
        cout << "1" << endl;
} while (bool eof()==false);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:10: error: expected primary-expression before 'bool'
   22 | } while (bool eof()==false);
      |          ^~~~
a.cc:22:10: error: expected ')' before 'bool'
   22 | } while (bool eof()==false);
      |         ~^~~~
      |          )
a.cc:22:10: error: expected ';' before 'bool'
   22 | } while (bool eof()==false);
      |          ^~~~
      |          ;
a.cc:22:18: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   22 | } while (bool eof()==false);
      |                  ^~
a.cc:22:18: note: remove parentheses to default-initialize a variable
   22 | } while (bool eof()==false);
      |                  ^~
      |                  --
a.cc:22:18: note: or replace parentheses with braces to value-initialize a variable
a.cc:22:20: error: expected initializer before '==' token
   22 | } while (bool eof()==false);
      |                    ^~
Language: C++

#include <iostream>
using namespace std;
int main(){
    int a,b,c;
    while ( ain.eof()){break;}
        c = a+b;
        if (c/1000000>=1)
            cout << "7" << endl;
        else if (c/100000>=1)
            cout << "6" << endl;
        else if (c/10000>=1)
            cout << "5" << endl;
        else if (c/1000>=1)
            cout << "4" << endl;
        else if (c/100>=1)
            cout << "3" << endl;
        else if (c/10>=1)
            cout << "2" << endl;
        else
            cout << "1" << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:13: error: 'ain' was not declared in this scope; did you mean 'main'?
    5 |     while ( ain.eof()){break;}
      |             ^~~
      |             main
a.cc: At global scope:
a.cc:22:1: error: expected declaration before '}' token
   22 | }
      | ^
Language: C++

#include <iostream>
using namespace std;
int main(){
    int a,b,c;
    while ( cin >> a >> b){
        if(cin.eof()){break;}
        c = a+b;
        if (c/1000000>=1)
            cout << "7" << endl;
        else if (c/100000>=1)
            cout << "6" << endl;
        else if (c/10000>=1)
            cout << "5" << endl;
        else if (c/1000>=1)
            cout << "4" a<< endl;
        else if (c/100>=1)
            cout << "3" << endl;
        else if (c/10>=1)
            cout << "2" << endl;
        else
            cout << "1" << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:24: error: expected ';' before 'a'
   15 |             cout << "4" a<< endl;
      |                        ^~
      |                        ;
Language: C++

#include <iostream>
#include <math.h>
#include <algorithm>
using namespace std;

int main()
{
	int a,b,c;
	cin >>a >>b;
	c = a+b;
	int ret = 1;
	for(i=1;;i++){
		if( (c/pow(10,i) >=1 ){
			ret++;
		}else{
			break;
		}
	}
	cout <<ret <<endl;
		
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'i' was not declared in this scope
   12 |         for(i=1;;i++){
      |             ^
a.cc:13:39: error: expected ')' before '{' token
   13 |                 if( (c/pow(10,i) >=1 ){
      |                   ~                   ^
      |                                       )
a.cc:18:9: error: expected primary-expression before '}' token
   18 |         }
      |         ^
Language: C++

#include <iostream>
#include <sstream>

int main() {
  unsigned int x, y;
  std::iostringstream ss;

  std::cin >> x >> y;
  ss << x+y;
  std::cout << ss.str.size  << std::endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: 'iostringstream' is not a member of 'std'; did you mean 'wostringstream'?
    6 |   std::iostringstream ss;
      |        ^~~~~~~~~~~~~~
      |        wostringstream
a.cc:9:3: error: 'ss' was not declared in this scope
    9 |   ss << x+y;
      |   ^~
Language: C++

#include<iostream>

using namespace std;

int main()
{
	int num1, num2,sum;
	int n = 1;
	cin >> num1 >> num2;

	sum = num1 + num2;

	while (true)
	{
		int po = pow(10, n);
		if (!((sum % po) == sum))
			n++;
		else
			break;
	}

	cout << n << endl;

	cin >> n;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: 'pow' was not declared in this scope; did you mean 'po'?
   15 |                 int po = pow(10, n);
      |                          ^~~
      |                          po
Language: C++

#include<iostream>
#include<cmath>
using namespace std;
   
int main()
{
    int num1[3], num2[3],sum[3];
 
    for(int i = 0;i < 3;i++)
   {
       cin >> num1[i] >> num2[i];
       sum[i] = num1[i] >> num2[i];
   }


    for(int i = 0;i < 3;i++)
    {
       int n = 1;
   
       while (true)
       {
           int po = pow(10, n);
           if (!((sum % po) == sum))
               n++;
           else
               break;
       }
        cout << n << endl;
     }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:23: error: invalid operands of types 'int [3]' and 'int' to binary 'operator%'
   23 |            if (!((sum % po) == sum))
      |                   ~~~ ^ ~~
      |                   |     |
      |                   |     int
      |                   int [3]
Language: C++

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        for (int i = 0; i < 200; i++) {
            int x1 =input.nextInt();
        int x2 =input.nextInt();
        int x3 = input.nextInt();
        String s1 = String.valueOf(x3);
        System.out.println(s1.length());
        }
    }
}

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

def counts(num):
	if num:counts(map(int, raw_input().split()))
	if num:countlist.append(len(str(num[0]+num[1])))

countlist = []
counts(map(int, raw_input().split()))
countlist.reverse()
for x in countlist:
	print x

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

dataset = STDIN.read.split("\n").map do |data|
    data.split(" ")
end.map do |data|
  data.map(&:to_i)
end

dataset.each do |data|
    puts  (data[0] + data[1]).to_s.size
end

Compiler output:
a.cc:1:1: error: 'dataset' does not name a type
    1 | dataset = STDIN.read.split("\n").map do |data|
      | ^~~~~~~
Language: C++

#include <iostream>
#include <cmath>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
using namespace std;




int main()
{
	long long int a,b;
	char c1[15],c2[15];
	int count=0;
	int i;
	while(scanf("%lld %lld",&a,&b)==2)
	{
		itoa(a,c1,10);
		itoa(b,c2,10);
		i=0;
		while(i<strlen(c1))
		{
			if(c1[i]!='0')
			{
				count++;
			}
			i++;
		}
		i=0;
		while(i<strlen(c2))
		{
			if(c2[i]!='0')
			{
				count++;
			}
			i++;
		}
		cout<<count<<endl;
		count=0;

	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:17: error: 'itoa' was not declared in this scope
   19 |                 itoa(a,c1,10);
      |                 ^~~~
Language: C++

#include<stdio.h>

using namespace std;

int main(){
 int a, b;
 while(a!=-1 && b!=-1){
  scanf("%d%d", &a, &b);
  a += b;
  for(i=0;i<201;i++){
   if(a/10==0){
    printf("%d\n", i+1);
    break;
   }
   else{
    a = a/10;
   }
  }
 }

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: 'i' was not declared in this scope
   10 |   for(i=0;i<201;i++){
      |       ^
Language: C++

#include<stdio.h>

using namespace std;

int main(){
 int a, b;
 while(scanf("%d%d", &a, &b)!=EOF){
  a += b;
  for(i=0;i<201;i++){
   if(a/10==0){
    printf("%d\n", i+1);
    break;
   }
   else{
    a = a/10;
   }
  }
 }

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: 'i' was not declared in this scope
    9 |   for(i=0;i<201;i++){
      |       ^
Language: C++

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        while(true) {
            try{
            String[] line = br.readLine().split(" ");
            int length = String.valueOf(Integer.parseInt(line[0]) + Integer.parseInt(line[1])).length(); 
            System.out.println(length);
            }catch(NullPointerException e) {
                break;
            }
        }
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.io.BufferedReader;
      | ^~~~~~
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.InputStreamReader;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: expected unqualified-id before 'public'
    4 | public class Main {
      | ^~~~~~
Language: C++

while gets ;p $_.split(" ").map{|i|i.to_i}.inject(:+).to_s.size;end

Compiler output:
a.cc:1:1: error: expected unqualified-id before 'while'
    1 | while gets ;p $_.split(" ").map{|i|i.to_i}.inject(:+).to_s.size;end
      | ^~~~~
a.cc:1:13: error: 'p' does not name a type
    1 | while gets ;p $_.split(" ").map{|i|i.to_i}.inject(:+).to_s.size;end
      |             ^
a.cc:1:43: error: expected unqualified-id before '.' token
    1 | while gets ;p $_.split(" ").map{|i|i.to_i}.inject(:+).to_s.size;end
      |                                           ^
a.cc:1:65: error: 'end' does not name a type
    1 | while gets ;p $_.split(" ").map{|i|i.to_i}.inject(:+).to_s.size;end
      |                                                                 ^~~
Language: C++

#include<iostream>
using namespace std;

int main(){
   int a[200],b[200],c[200],digit[200];
   int i,imax;
   digit = 1;
   i = 0;
   for(i=0;i<200;i++)digit[i] = 1;
   while(){
     cin >> a[i] >> b[i];
     c[i] = a[i] + b[i];
     i++;
     if(a[i]==NULL||b[i]==NULL)
       break;
   }

   imax = i;

   for(i=0;i<imax+1;i++){
     while(c[i]=>10){
       c[i] =/ 10;
       digit[i]++;
     }
   }

   for(i=0;i<imax+1;i++)cout << digit[i] << endl;

   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: incompatible types in assignment of 'int' to 'int [200]'
    7 |    digit = 1;
      |    ~~~~~~^~~
a.cc:10:10: error: expected primary-expression before ')' token
   10 |    while(){
      |          ^
a.cc:14:15: warning: NULL used in arithmetic [-Wpointer-arith]
   14 |      if(a[i]==NULL||b[i]==NULL)
      |               ^~~~
a.cc:14:27: warning: NULL used in arithmetic [-Wpointer-arith]
   14 |      if(a[i]==NULL||b[i]==NULL)
      |                           ^~~~
a.cc:21:17: error: expected primary-expression before '>' token
   21 |      while(c[i]=>10){
      |                 ^
a.cc:22:14: error: expected primary-expression before '/' token
   22 |        c[i] =/ 10;
      |              ^
Language: C++

#include<iostream>
using namespace std;
 
int main(){
   int a[200],b[200],c[200],digit[200];
   int i,imax,j;
   digit = 1;
   i = 0;
   j = 1;
   for(i=0;i<200;i++)digit[i] = 1;
   while(j){
     cin >> a[i] >> b[i];
     c[i] = a[i] + b[i];
     i++;
     if(a[i]==NULL||b[i]==NULL)
       break;
   }
 
   imax = i;
 
   for(i=0;i<imax+1;i++){
     while(c[i]=>10){
       c[i] =/ 10;
       digit[i]++;
     }
   }
 
   for(i=0;i<imax+1;i++)cout << digit[i] << endl;
 
   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: incompatible types in assignment of 'int' to 'int [200]'
    7 |    digit = 1;
      |    ~~~~~~^~~
a.cc:15:15: warning: NULL used in arithmetic [-Wpointer-arith]
   15 |      if(a[i]==NULL||b[i]==NULL)
      |               ^~~~
a.cc:15:27: warning: NULL used in arithmetic [-Wpointer-arith]
   15 |      if(a[i]==NULL||b[i]==NULL)
      |                           ^~~~
a.cc:22:17: error: expected primary-expression before '>' token
   22 |      while(c[i]=>10){
      |                 ^
a.cc:23:14: error: expected primary-expression before '/' token
   23 |        c[i] =/ 10;
      |              ^
Language: C++

#include<iostream>
using namespace std;
 
int main(){
   int a[200],b[200],c[200],digit[200];
   int i,imax;
   i = 0;
   for(i=0;i<200;i++)digit[i] = 1;
   while(){
     cin >> a[i] >> b[i];
     c[i] = a[i] + b[i];
     i++;
     if(a[i]==NULL||b[i]==NULL)
       break;
   }
 
   imax = i;
 
   for(i=0;i<imax+1;i++){
     while(c[i]>=10){
       c[i] /= 10;
       digit[i]++;
     }
   }
 
   for(i=0;i<imax+1;i++)cout << digit[i] << endl;
 
   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: expected primary-expression before ')' token
    9 |    while(){
      |          ^
a.cc:13:15: warning: NULL used in arithmetic [-Wpointer-arith]
   13 |      if(a[i]==NULL||b[i]==NULL)
      |               ^~~~
a.cc:13:27: warning: NULL used in arithmetic [-Wpointer-arith]
   13 |      if(a[i]==NULL||b[i]==NULL)
      |                           ^~~~
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main()
{
	unsigned int a, b;
	string sa,sb;
	while (cin)
	{
		cin >> a >> b;
		
		stringstream ss;
		ss < (a + b);
		cout << ss.str().size() << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:30: error: aggregate 'std::stringstream ss' has incomplete type and cannot be defined
   14 |                 stringstream ss;
      |                              ^~
Language: C++

#include <iostream>
#include <array>

using namespace std;

int main(void)
{

	for(int i = 0; i < 3; i++){
		int a, b;
		cin >> a >> b;
		a+=b;
		for(int d = 1; a > 0; d++){
			a /= 10;
		}
		cout << d;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:25: error: 'd' was not declared in this scope
   16 |                 cout << d;
      |                         ^
Language: C++

#include<stdio.h>
#include<math.h>

int main(){

	int a = 0;
	int b = 0;
	int c = 0;
	int i = 0;

	scanf_s("%d", &a);
	scanf_s("%d", &b);

	c = a + b;

	for (i = 0; c != 0; i++)
	{
		c /= 10;
	}

	printf("%d\n",i);

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   11 |         scanf_s("%d", &a);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<stdio.h>
#include<math.h>

int main(){

	int a = 0;
	int b = 0;
	int c = 0;
	int e = 0;

	for (int i = 0; i < 3; i++)
	{
		scanf_s("%d", &a);
		scanf_s("%d", &b);

		c = a + b;

		for (e = 0; c != 0; e++)
		{
			c /= 10;
		}

		printf("%d\n", e);
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:17: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   13 |                 scanf_s("%d", &a);
      |                 ^~~~~~~
      |                 scanf
Language: C++

import java.util.*;
public class Main{
    static Scanner sc = new Scanner(System.in);
    public static void main(String[] args){
    while(sc.hasNext()){
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = a+b;
        int ans = 1;
        //System.out.println(c);
        while(c >= 10){
        k++;
        c = c/10;
        //System.out.println(c);
        }
        System.out.println(k);
    }
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: expected unqualified-id before 'public'
    2 | public class Main{
      | ^~~~~~
Language: C++

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <mbstring.h>
#include <math.h>
using namespace std;

int main(void){
	double n;
	int a,b;
	while(scanf("%d %d",&a,&b)!=EOF){
		a+=b;
		n=log((double)a)/log(10.0);
		printf("%d\n",(int)(n+1.0));
	}
	return 0;
}

Compiler output:
a.cc:4:10: fatal error: mbstring.h: No such file or directory
    4 | #include <mbstring.h>
      |          ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>

using namespace std;

int main(){
	
	int i;

	int a,b,sum,figure;
	do{
		cin >> a[i] >> b[i];
	}while((a[i]<0||a[i]>100000)&&(b[i]<0||b[i]>100000));
	
	sum = a + b;

	
	figure = 1;
	while(sum[i]/10!=0){
		sum[i] = sum[i]/10;
		figure++;
	}
	cout << figure << "\n";
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:25: error: invalid types 'int[int]' for array subscript
   11 |                 cin >> a[i] >> b[i];
      |                         ^
a.cc:11:33: error: invalid types 'int[int]' for array subscript
   11 |                 cin >> a[i] >> b[i];
      |                                 ^
a.cc:12:18: error: invalid types 'int[int]' for array subscript
   12 |         }while((a[i]<0||a[i]>100000)&&(b[i]<0||b[i]>100000));
      |                  ^
a.cc:12:26: error: invalid types 'int[int]' for array subscript
   12 |         }while((a[i]<0||a[i]>100000)&&(b[i]<0||b[i]>100000));
      |                          ^
a.cc:12:41: error: invalid types 'int[int]' for array subscript
   12 |         }while((a[i]<0||a[i]>100000)&&(b[i]<0||b[i]>100000));
      |                                         ^
a.cc:12:49: error: invalid types 'int[int]' for array subscript
   12 |         }while((a[i]<0||a[i]>100000)&&(b[i]<0||b[i]>100000));
      |                                                 ^
a.cc:18:18: error: invalid types 'int[int]' for array subscript
   18 |         while(sum[i]/10!=0){
      |                  ^
a.cc:19:20: error: invalid types 'int[int]' for array subscript
   19 |                 sum[i] = sum[i]/10;
      |                    ^
a.cc:19:29: error: invalid types 'int[int]' for array subscript
   19 |                 sum[i] = sum[i]/10;
      |                             ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  longint a,b;
  int x[200];
  int n = 0;
  while(cin >> a >> b){
    x[n] = 0;
    a = a + b;
    while(1){
      a = a/10;
      if(a >= 10)
        x[n]++;
    }
    n++;
  }

  for(int i = 0; i < n; i++)
    cout << x[i] << '\n';

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'longint' was not declared in this scope; did you mean 'long'?
    4 |   longint a,b;
      |   ^~~~~~~
      |   long
a.cc:7:16: error: 'a' was not declared in this scope
    7 |   while(cin >> a >> b){
      |                ^
a.cc:7:21: error: 'b' was not declared in this scope
    7 |   while(cin >> a >> b){
      |                     ^
Language: C++

#include<stdio.h>
int main(void){
Int i,a,b,c;
scanf("%d %d",&a,&b);
c=a+b;
for(i=0;c<10;i++){
c=c/10;
}
printf("%d\n",i);
return(0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:1: error: 'Int' was not declared in this scope; did you mean 'int'?
    3 | Int i,a,b,c;
      | ^~~
      | int
a.cc:4:16: error: 'a' was not declared in this scope
    4 | scanf("%d %d",&a,&b);
      |                ^
a.cc:4:19: error: 'b' was not declared in this scope
    4 | scanf("%d %d",&a,&b);
      |                   ^
a.cc:5:1: error: 'c' was not declared in this scope
    5 | c=a+b;
      | ^
a.cc:6:5: error: 'i' was not declared in this scope
    6 | for(i=0;c<10;i++){
      |     ^
a.cc:9:15: error: 'i' was not declared in this scope
    9 | printf("%d\n",i);
      |               ^
Language: C++

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

int main(){
	unsigned int a,b
	while(cin>>a>>b){
		a=log10(a+b)+1;
		cout << a << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: expected initializer before 'while'
    7 |         while(cin>>a>>b){
      |         ^~~~~
Language: C++

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

int main()
{
        string input;
        string hoge;
        string fuga;
        string piyo;
        long first, second;
        int size = 0;
        int i;
        long sum = 0;
        double sep = 0;

        cout << "input two numbers" << endl;
        cin >> input;
        size = input.size();
        i = input.find(" ");
        hoge = input.substr(0,i - 1);
        fuga = input.substr(i + 1);
        first = stoi(hoge);
        second = stoi(fuga);
        sum = first + second;
        piyo = to_string(sum);
        size = piyo.size();
        cout << size << endl;
}
~                                                                                                                                                                                                 
~                                                                                                                                                                                                 
~                                                                                                                                                                                                 
~                                                                                                                                                                                                 
~                                                       

Compiler output:
a.cc:33:1: error: expected class-name before '~' token
   33 | ~
      | ^
Language: C++

import java.util.*;

class Main{
public static void main(String[] args){
int a;
int b;
Scanner sc=new Scanner(System.in);
while(sc.hasNextInt()){
a=sc.nextInt();
b=sc.nextInt();
int d=(int)Math.log10(a+b);
System.out.println(d);
}
}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:7: error: expected ':' before 'static'
    4 | public static void main(String[] args){
      |       ^~~~~~~
      |       :
a.cc:4:25: error: 'String' has not been declared
    4 | public static void main(String[] args){
      |                         ^~~~~~
a.cc:4:34: error: expected ',' or '...' before 'args'
    4 | public static void main(String[] args){
      |                                  ^~~~
a.cc:15:2: error: expected ';' after class definition
   15 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:7:1: error: 'Scanner' was not declared in this scope
    7 | Scanner sc=new Scanner(System.in);
      | ^~~~~~~
a.cc:8:7: error: 'sc' was not declared in this scope
    8 | while(sc.hasNextInt()){
      |       ^~
a.cc:11:12: error: 'Math' was not declared in this scope
   11 | int d=(int)Math.log10(a+b);
      |            ^~~~
a.cc:12:1: error: 'System' was not declared in this scope
   12 | System.out.println(d);
      | ^~~~~~
Language: C++

#include<iostream>
using namaspace std;
int main()
{
while(scanf("%d %d",&a,&b) != EOF)
{
sum = a + b;
	while (sum > 0){
		sum /= 10;
		result++;
	}
	cout << result;
}

return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namaspace'
    2 | using namaspace std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:22: error: 'a' was not declared in this scope
    5 | while(scanf("%d %d",&a,&b) != EOF)
      |                      ^
a.cc:5:25: error: 'b' was not declared in this scope
    5 | while(scanf("%d %d",&a,&b) != EOF)
      |                         ^
a.cc:7:1: error: 'sum' was not declared in this scope
    7 | sum = a + b;
      | ^~~
a.cc:10:17: error: 'result' was not declared in this scope
   10 |                 result++;
      |                 ^~~~~~
a.cc:12:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |         cout << result;
      |         ^~~~
      |         std::cout
In file included from a.cc:1:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:17: error: 'result' was not declared in this scope
   12 |         cout << result;
      |                 ^~~~~~
Language: C++

#include<stdio.h>
#include<math.h>
#include<stdlib.h>
#include<string.h>
#include<string>
#include<algorithm>
#include<iostream>
#include<stack>
#include<queue>
#include<vector>
#include<map>
#include<set>
using namespace std;
int reshan(int sum)
{
    int i=0;
    while(sum!=0)
    {
        i++;
        sum=sum/10;
    }
    return i;5
}
int main ()
{
    int in1,in2;
    int i;
    while (scanf ("%d %d",&in1,&in2)!=EOF)
    {
        int sum=in1+in2;
        int z=reshan(sum);
        printf ("%d\n",z);
    }
    return 0;
}

Compiler output:
a.cc: In function 'int reshan(int)':
a.cc:22:15: error: expected ';' before '}' token
   22 |     return i;5
      |               ^
      |               ;
   23 | }
      | ~
Language: C++

def digit n
 i = 0
 while n>0
  n = n/10
  i +=1
 end
 i
end

while n = gets
 a,b = n.chomp.split
 a,b = a.to_i,b.to_i
 
 puts digit a+b
end

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

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

int main(){

	array<int, 6> t{ {10, 100, 1000, 10000, 100000, 1000000} };

	for (int i = 0; i < 200; ++i) {
		 if (!cin) {
			 break;
		 }
		 int a, b, sum;
		 cin >> a >> b;
		 
		 sum = a + b;
		 auto result = find_if(t.begin(), t.end(), [sum](const int x){return sum < x; });
		 auto output = result - t.begin() + 1;
		 cout << output << endl;
	}


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:32: error: 'find_if' was not declared in this scope
   18 |                  auto result = find_if(t.begin(), t.end(), [sum](const int x){return sum < x; });
      |                                ^~~~~~~
Language: C++


#include <iostream>

using namespace std;

int main(){
      long int a,b,sum;
int i,j;
while(cin>>a>>b)
    {
    sum=a+b;
    for(j=0;sum>0;j++)
    {
        sum=sum/10;
        }
    cout<<j<<endl;
    }
    

Compiler output:
a.cc: In function 'int main()':
a.cc:17:6: error: expected '}' at end of input
   17 |     }
      |      ^
a.cc:6:11: note: to match this '{'
    6 | int main(){
      |           ^
Language: C++

#include <iostream>
using namespace std;
int main(int argc, char** argv) {

	int a,b;
	sum=0;
cin >>a>>b;
int sum = a+b;
int n=0;
while (sum>= 1)	{
	n++;
	sum/=10;
	
}
	cout <<n << endl;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:6:9: error: 'sum' was not declared in this scope
    6 |         sum=0;
      |         ^~~
Language: C++

  1 #include<iostream>
  2 #include<stdio.h>
  3 using namespace std;
  4 int main(){
  5          
  6            int a,b;
  7              while(scanf("%d %d",&a,&b) != EOF){
  8                        int i = 0;
  9                          a = a + b; 
 10                            while(a > 0){
 11                                        a = a / 10;
 12                                            i++;
 13                                                  } 
 14                                                   
 15                                                     cout << i << endl;
 16                                                            
 17                                                        }   
 18 }

Compiler output:
a.cc:1:5: error: stray '#' in program
    1 |   1 #include<iostream>
      |     ^
a.cc:2:5: error: stray '#' in program
    2 |   2 #include<stdio.h>
      |     ^
a.cc:1:3: error: expected unqualified-id before numeric constant
    1 |   1 #include<iostream>
      |   ^
a.cc:4:3: error: expected unqualified-id before numeric constant
    4 |   4 int main(){
      |   ^
Language: C++

#include<iostream>
using namespace std;
int main(void){
	int a,b;
	while(cin>>a>>b)
		for(a+=b,b=0;a>0;b++,a/=10);
		cout<<b<<endl;
	}
}

Compiler output:
a.cc:9:1: error: expected declaration before '}' token
    9 | }
      | ^
Language: C++

#include <cmath>
#include <iostream>

using namespace std;

int main()
{
	int a, int b;

	while (cin >> a >> b)
	{
		cout << log10(a + b) + 1 << endl;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: expected unqualified-id before 'int'
    8 |         int a, int b;
      |                ^~~
a.cc:10:28: error: 'b' was not declared in this scope
   10 |         while (cin >> a >> b)
      |                            ^
Language: C++

#include <iostream>
using namespace std;

int main(){
	int a, b, c;
	while ( cin >> a >> b ) {
		a += b;
		ans = 0;
		while( a > 0 , c++ , a /= 10 );
		cout << c << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
    8 |                 ans = 0;
      |                 ^~~
      |                 abs
Language: C++

#include<stdio.h>
int main(){
	int ab[200][2],f;
	while(cin>>f){
		scanf("%d %d",&ab[i][1],&ab[i][2]);
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:15: error: 'cin' was not declared in this scope
    4 |         while(cin>>f){
      |               ^~~
a.cc:5:35: error: 'i' was not declared in this scope
    5 |                 scanf("%d %d",&ab[i][1],&ab[i][2]);
      |                                   ^
Language: C++

#include<stdio.h>
#include<iostream.h>
int main(){
	int ab[200][2],f,i=0,a,g,k=0;
	while(cin<f){
		scanf("%d %d",&ab[i][1],&ab[i][2]);
		i++;
	}
	for(int j=0;j<i;j++){
		a=ab[j][1]+ab[j][2];
		for(g=0;;g++){
			a=a/10;
			k++;
			if(a==0){
				printf("%d\n",k);
				break;
			}
		}
		k=0;
	}
	return 0;
}

Compiler output:
a.cc:2:9: fatal error: iostream.h: No such file or directory
    2 | #include<iostream.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include<stdio.h>
#include<iostream.h>
using namespace std;
int main(){
	int ab[200][2],f,i=0,a,g,k=0;
	while(cin<f){
		scanf("%d %d",&ab[i][1],&ab[i][2]);
		i++;
	}
	for(int j=0;j<i;j++){
		a=ab[j][1]+ab[j][2];
		for(g=0;;g++){
			a=a/10;
			k++;
			if(a==0){
				printf("%d\n",k);
				break;
			}
		}
		k=0;
	}
	return 0;
}

Compiler output:
a.cc:2:9: fatal error: iostream.h: No such file or directory
    2 | #include<iostream.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include<stdio.h>
#include<iostream.h>
using namespace std;
int main(){
	int ab[200][2],i=0,a,g,k=0;
double f;
	while(cin<f){
		scanf("%d %d",&ab[i][1],&ab[i][2]);
		i++;
	}
	for(int j=0;j<i;j++){
		a=ab[j][1]+ab[j][2];
		for(g=0;;g++){
			a=a/10;
			k++;
			if(a==0){
				printf("%d\n",k);
				break;
			}
		}
		k=0;
	}
	return 0;
}

Compiler output:
a.cc:2:9: fatal error: iostream.h: No such file or directory
    2 | #include<iostream.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include<stdio.h>
#include<iostream.h>
using namespace std;
int main(){
	int ab[200][2],i=0,a,g,k=0;
double f=200;
	while(cin<f){
		scanf("%d %d",&ab[i][1],&ab[i][2]);
		i++;
	}
	for(int j=0;j<i;j++){
		a=ab[j][1]+ab[j][2];
		for(g=0;;g++){
			a=a/10;
			k++;
			if(a==0){
				printf("%d\n",k);
				break;
			}
		}
		k=0;
	}
	return 0;
}

Compiler output:
a.cc:2:9: fatal error: iostream.h: No such file or directory
    2 | #include<iostream.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include "stdafx.h"
#include <iostream>


using namespace std;

int a, b;

void solve()
{
	int res = 0;

	a += b;

	for (; a; a /= 10)
		res++;

	cout << res << endl;
}

int main()
{
	while (cin >> a >> b)
		solve();

	return 0;
}

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