제출 #1131445

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1131445		kem	Bikeparking (EGOI24_bikeparking)	C++20	100 / 100	41 ms	2632 KiB

Main

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

#define NAME "name"

#define ll long long
#define pb push_back
#define pii pair<int, int>
#define fi first
#define se second
#define endl "\n"

#define sz(v) (int)(v).size()
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()

const int LIM = 3e5 + 3;
const int INF = 1e9 + 9;
const int mod = 1e9 + 7;

int n;
int x[LIM], y[LIM];

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    if (ifstream(NAME ".inp"))
    {
        freopen(NAME ".inp", "r", stdin);
        freopen(NAME ".out", "w", stdout);
    }

    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> x[i];
    for (int i = 1; i <= n; i++)
        cin >> y[i];

    int pos = 0, nor = 0, neg = 0;
    for (int i = n; i >= 1; i--)
    {
        int res1 = min(neg, x[i]);
        neg -= res1, x[i] -= res1;
        int res2 = min(nor, x[i]);
        nor -= res2, x[i] -= res2;

        pos += res1 + res2;
        nor += min(x[i], y[i]);
        neg += y[i] - min(x[i], y[i]);
    }
    cout << pos - neg;

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         freopen(NAME ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:33:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |         freopen(NAME ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 9 / 9
• Subtask 3: 19 / 19
• Subtask 4: 24 / 24
• Subtask 5: 32 / 32