제출 #116974

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
116974		FutymyClone	Doktor (COCI17_doktor)	C++14	80 / 100	83 ms	16888 KiB

doktor

#include <bits/stdc++.h>

using namespace std;

const int N = 5e5 + 5;

int n, a[N], cnt[2 * N], mn[2 * N], mx[2 * N];

int main(){
    scanf("%d", &n); memset(mn, 0x3f, sizeof(mn));
    for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
    for (int i = 1; i <= n; i++) {
        int x = i - a[i];
        if (x & 1) cnt[2 * i - 1 - x]++;
        else cnt[(i - x / 2) * 2 - 1]++;
        mn[2 * i - 1 - x] = min(mn[2 * i - 1 - x], i);
        mx[2 * i - 1 - x] = max(mx[2 * i - 1 - x], i);
    }

    int Max = -1, pos = 0;
    for (int i = 1; i <= 2 * n - 1; i++) if (cnt[i] > Max) Max = cnt[i], pos = i;
    int res = pos;
    //cout << res << "\n";
    if (pos & 1) {
        pos = (pos + 1) / 2;
        int d = max(pos - mn[res], mx[res] - pos);
        cout << a[pos - d] << " " << a[pos + d];
    }
    else {
        pos /= 2;
        int d = max(pos - mn[res], mx[res] - (pos + 1));
        cout << a[pos - d] << " " << a[pos + 1 + d];
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

doktor.cpp: In function 'int main()':
doktor.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n); memset(mn, 0x3f, sizeof(mn));
     ~~~~~^~~~~~~~~~
doktor.cpp:11:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
                                  ~~~~~^~~~~~~~~~~~~

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