为啥错了啊

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

int main() {
    int n,t=0,m=0,l;    
    char s[40001];
    scanf("%s",s);
    l=int(strlen(s));
    for(int i=l;i<l*l;i++)  
            scanf(" %c",&s[i]);
    printf("%d",l); 
    for(int i=0;i<l*l;i++){
        if(s[i]=='0')
            t++;
        if(s[i]=='1')
            m++;
        if(s[i]!=s[i+1]&&s[i]=='0')
            {printf(" %d",t);t=0;}
        if(s[i]!=s[i+1]&&s[i]=='1')
            {printf(" %d",m);m=0;}
    }
    printf("\n");
    return 0;
}