** Consider the following sequence: 7,77,777, 7777,... Let T be the smallest element in this sequence that is divisible by 2003. How many digits does T have?** enter code here

#include <iostream>
#include <stdio.h>
using namespace std;
int main() 
{
    int a=777;
    int count =0;
    for(int i=1;;i  );
    {
        a=a*10 7;
    
        if (a 03==0)
        {
            break;
        }
        else 
        {
            count  ;;
        }
    }
    cout << count 1 ;
    return 0;
}

CodePudding user response：

If you print the value of a you can see that it overflows after a few iterations. Anyway the error is due to an infinite loop, so your process is killed.

CodePudding user response：

Try replacing the int with double.