Submission #885131

#	Time	Username	Problem	Language	Result	Execution time	Memory
885131		votranngocvy	Difference (POI11_roz)	C++14	40 / 100	1065 ms	65536 KiB

roz

#include <bits/stdc++.h>
using namespace std;

const int N = 1e6 + 5;
int cnt[N][30];

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        char x;
        cin >> x;
        for (char j = 'a'; j <= 'z'; j++) cnt[i][j - 'a'] = cnt[i - 1][j - 'a'];
        cnt[i][x - 'a']++;
    }
    int ans = 0;
    for (int i = 1; i <= n; i++) 
        for (int j = i + 1; j <= n; j++) {
            int Min = 1e9 + 7,Max = 0;
            for (int k = 0; k < 26; k++) {
                Max = max(Max,cnt[j][k] - cnt[i - 1][k]);
                if (cnt[j][k] - cnt[i - 1][k] > 0) Min = min(Min,cnt[j][k] - cnt[i - 1][k]);
            }
            ans = max(ans,Max - Min);
        }
    cout << ans << "\n";

}

• 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