제출 #1099099

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1099099		baoquan	3단 점프 (JOI19_jumps)	C++14	0 / 100	2 ms	348 KiB

jumps

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

#define int long long

const int maxn = 1e6 + 4;

int a[maxn] , n , m;

void nhap()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    freopen("CHONQUA.INP" , "r" , stdin);
    freopen("CHONQUA.OUT" , "w" , stdout);
    cin >> n;
    for (int i = 1 ; i <= n ; i ++)
        cin >> a[i];
    cin >> m;
}

void xl1(int l , int r)
{
    int ans = 0;
    for (int i = l ; i <= r - 2 ; i ++)
    {
        for (int j = i + 1 ; j <= r - 1 ; j ++)
        {
            for (int k = j + (j - i) ; k <= r ; k ++)
            {
                ans = max(ans , a[i] + a[j] + a[k]);
            }
        }
    }
    cout << ans << '\n';
}

void Sub1()
{
    for (int i = 1 ; i <= m ; i ++)
    {
        int l , r;
        cin >> l >> r;	
        xl1(l , r);
    }
}

signed main()
{
    nhap();
    if (n <= 100 && m <= 100)
        Sub1();
}

컴파일 시 표준 에러 (stderr) 메시지

jumps.cpp: In function 'void nhap()':
jumps.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("CHONQUA.INP" , "r" , stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jumps.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen("CHONQUA.OUT" , "w" , stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54