제출 #551786

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
551786		hoanghq2004	Gap (APIO16_gap)	C++14	100 / 100	63 ms	2372 KiB

gap

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "gap.h"

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;

mt19937 gen(std :: chrono :: system_clock :: now().time_since_epoch().count());

long long a[1000010];

long long findGap(int T, int n) {
    if (T == 1) {
        long long L = 0, R = 1e18;
        int lhs = 1, rhs = n;
        while (lhs <= rhs) {
            long long temp1 = 0, temp2 = 0;
            long long *nL = &temp1, *nR = &temp2;
            MinMax(L, R, nL, nR);
            L = *nL, R = *nR;
            a[lhs] = L, a[rhs] = R;
            ++L, --R;
            ++lhs, --rhs;
        }
        long long ans = 0;
        for (int i = 1; i < n; ++i) ans = max(ans, a[i + 1] - a[i]);
        return ans;
    } else {
        long long L = 0, R = 1e18, x, y;
        MinMax(L, R, &x, &y);
        L = x, R = y;
        vector <long long> a = {L};
        long long gap = (R - L) / (n - 1);
        for (++L; L < R && a.size() <= n; L += gap + 1) {
            long long x, y;
            MinMax(L, L + gap, &x, &y);
            if (x != -1 && y != -1) {
                a.push_back(x);
                if (x != y) a.push_back(y);
            }
        }
        a.push_back(R);
        long long ans = 0;
        for (int i = 1; i < a.size(); ++i) ans = max(ans, a[i] - a[i - 1]);
        return ans;
    }
}

컴파일 시 표준 에러 (stderr) 메시지

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:40:37: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |         for (++L; L < R && a.size() <= n; L += gap + 1) {
      |                            ~~~~~~~~~^~~~
gap.cpp:50:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for (int i = 1; i < a.size(); ++i) ans = max(ans, a[i] - a[i - 1]);
      |                         ~~^~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70