답안 #52132 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
52132	2018-06-24T06:14:54 Z	EntityIT	Doktor (COCI17_doktor)	C++14	100 / 100	289 ms	61624 KB

doktor

#include<bits/stdc++.h>

using namespace std;

#define int long long

const int N = 500005;
int n, a[N], maxx = -N, pter1, pter2, sum[N];
vector<int> vec[N][2];

signed main () {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i], sum[i] = sum[i - 1] + (a[i] == i);
        if ( (a[i] + i) % 2) vec[(a[i] + i) / 2][1].push_back(abs(a[i] - i));
        else vec[(a[i] + i) / 2][0].push_back(abs(a[i] - i));
    }
    for (int i = 1; i <= n; ++i) {
        sort(vec[i][0].begin(), vec[i][0].end() );
        sort(vec[i][1].begin(), vec[i][1].end() );
    }

    for (int i = 1; i <= n; ++i) {
        for (int j = 0; j < vec[i][0].size(); ++j) {
            int radius = vec[i][0][j];
            int res = j + sum[i - radius / 2 - 1] + sum[n] - sum[i + radius / 2];
            if (maxx < res) {
                maxx = res;
                pter1 = i - radius / 2;
                pter2 = i + radius / 2;
            }
        }
    }
    for (int i = 1; i <= n; ++i) {
        for (int j = 0; j < vec[i][1].size(); ++j) {
            int radius = vec[i][1][j];
            int res = j + sum[i - radius / 2 - 1] + sum[n] - sum[i + radius / 2 + 1];
            if (maxx < res) {
                maxx = res;
                pter1 = i - radius / 2;
                pter2 = i + radius / 2 + 1;
            }
        }
    }

    cout << a[pter1] << ' ' << a[pter2];

    return 0;
}

Compilation message

doktor.cpp: In function 'int main()':
doktor.cpp:25:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < vec[i][0].size(); ++j) {
                         ~~^~~~~~~~~~~~~~~~~~
doktor.cpp:36:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < vec[i][1].size(); ++j) {
                         ~~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23800 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	24048 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	24048 KB	Output is correct
2	Correct	22 ms	24048 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	24076 KB	Output is correct
2	Correct	22 ms	24264 KB	Output is correct

Subtask #5
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	24284 KB	Output is correct
2	Correct	23 ms	24284 KB	Output is correct

Subtask #6
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	24372 KB	Output is correct
2	Correct	23 ms	24372 KB	Output is correct

Subtask #7
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	24700 KB	Output is correct
2	Correct	112 ms	34620 KB	Output is correct

Subtask #8
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	34620 KB	Output is correct
2	Correct	48 ms	34620 KB	Output is correct

Subtask #9
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	289 ms	49992 KB	Output is correct
2	Correct	148 ms	49992 KB	Output is correct

Subtask #10
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	218 ms	49992 KB	Output is correct
2	Correct	134 ms	61624 KB	Output is correct