제출 #764003

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
764003		t6twotwo	Highway Tolls (IOI18_highway)	C++17	0 / 100	11 ms	408 KiB

highway

#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void find_pair(int N, vector<int> U, vector<int> V, int A, int B) {
    int M = U.size();
    bool subtask3 = M == N - 1;
    for (int i = 0; i < M; i++) {
        if (U[i] != i && V[i] != i + 1) {
            subtask3 = 0;
        }
    }
    if (subtask3) {
        int s, t; {
            int lo = 0, hi = N - 1;
            while (lo < hi) {
                int mi = (lo + hi + 1) / 2;
                vector<int> w(M);
                fill(w.begin(), w.begin() + mi, 1);
                if (ask(w) != 1LL * A * mi) {
                    hi = mi - 1;
                } else {
                    lo = mi;
                }
            }
            s = lo;
        } {
            int lo = 0, hi = N - 1;
            while (lo < hi) {
                int mi = (lo + hi + 1) / 2;
                vector<int> w(M, 1);
                fill(w.begin(), w.begin() + mi, 0);
                if (ask(w) != 1LL * A * (N - mi - 1)) {
                    hi = mi - 1;
                } else {
                    lo = mi;
                }
            }
            t = lo;
        }
        answer(s, t);
    }
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 6
• Subtask 4: 0 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31