B 苦逼的单身狗

来源:https://www.cnblogs.com/RE-TLE/p/11447306.html
我在里面增加了输出如何截取的代码, 取消注释以后运行即可,这样或许更好理解了代码的做法

#include <iostream>
#include<cstdlib>
#include<cstdio>


using namespace std;

const int n = 9;

char t[n];

int main() {


    int T;
    cin >> T;
    while (T--)
    {
        cin >> t;
        int L = strlen(t);
        long long ans = 0;
        int l = -1, o = -1, v = -1, e = -1, d = 0;

        for (int i = 0;i < L; i++) {
            if (t[i] == 'L')
                l = i;
            else if (t[i] == 'O')
                o = i;
            else if (t[i] == 'V')
                v = i;
            else if (t[i] == 'E')
                e = i;

            d = min(min(l, o), min(v, e));

            if (d != -1)
                ans += d + 1;

            //截取的字符串文本如下:
            /*for (int j = 0;j <= d;j++) {
                for (int m = j;m <= i;m++) {
                    cout << t[m];
                }
                cout << endl;
            }*/
        }
        cout << ans << endl;
    }

    return 0;
}