欢迎使用CSDN-markdown编辑器

#include<iostream>#include<vector>#include<algorithm>using namespace std;int main(){    int n, i;    cin >> n;    vector<int>vec(n);    for (i = 0;i < n;i++) {        cin >> vec[i];    }    int seconds = 0;    while (vec[0]!=0) {        int number = 0;        number = vec[0];        rotate(vec.begin(), vec.begin() + 1, vec.begin() + number + 1);        ++seconds;    }    cout << seconds;    return 0;}