2066.解码

tip

原题链接：https://www.acwing.com/problem/content/2068/

思路

暴力

代码

#include <bits/stdc++.h>

using namespace std;

int cnt = 0;
string a;

int main() {
    cin >> a;
    
    for (int i = 0; i < a.size(); i++) {
        if (a[i] >= '0' && a[i] <= '9') {
            cnt = a[i] - '0';
            for (int j = 0; j < cnt - 1; j++) cout << a[i - 1];
        } else cout << a[i];
        
    }
    
    return 0;
}