注意那個(gè)循環(huán)次數(shù)，是n-1不是n，坑死了，，，

#include<iostream>
#include<string>
#include<cstring>
using namespace std;
int main()
{
    string s;
    int n, j;
    cin >> s >> n;
    n--;
    while (n--)
    {
        string temp;
        int i = 0, j = 0;
        while (i < s.length())
        {
            while (s[j] == s[i] && j < s.length())j++;
            temp += s[i] + to_string(j - i);
            i = j;
        }
        s = temp;
    }
    cout << s;
    return 0;
}