Submission #871626

#	Time	Username	Problem	Language	Result	Execution time	Memory
871626		vjudge1	Difference (POI11_roz)	C++17	40 / 100	1097 ms	65536 KiB

roz

#include "bits/stdc++.h"

using namespace std;
const int N = 1e6+5;
int n;
char c[N];
int sum[N][30];
int Get(int l, int r, int c) {
    return sum[r][c] - sum[l-1][c];
}
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin >> n;
    for (int i = 1 ; i <= n ; i++) {
        cin >> c[i];
        for (int j = 0 ; j < 26 ; j++)
            sum[i][j] = sum[i-1][j] + (c[i]-'a' == j);
    }
    int res = 0;
    for (int i = 1 ; i <= n ; i++)
        for (int j = 1 ; j < i ; j++) {
            int ma = 0, mi = 1e9;
            for (int c = 0 ; c < 26 ; c++)
                if (Get(j, i, c)) {
                    ma = max(ma, Get(j, i, c));
                    mi = min(mi, Get(j, i, c));
                }
            res = max(res, ma-mi);
        }
    cout << res;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10