제출 #1122538

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1122538		AnhPham	Bikeparking (EGOI24_bikeparking)	C++20	25 / 100	44 ms	5108 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define int     long long
#define sz(v)   (int)(v).size()
#define all(v)  (v).begin(), (v).end()

const   int     MOD = (int)1e9 + 7;
const   int     INF = (int)4e18 + 18;

void solve();

int32_t main() {
#define CODE "task"
    if (fopen(CODE".inp", "r"))
        freopen(CODE".inp", "r", stdin), freopen(CODE".out", "w", stdout);

    cin.tie(nullptr), cout.tie(nullptr) -> sync_with_stdio(false);
    int testcases = 1;

#define multitest 0
    if (multitest) { cin >> testcases; } for (; testcases--;) { solve(); }
}

/** [Pham Hung Anh - 12I - Tran Hung Dao High School for Gifted Student] **/
/**                            The Last Dance                            **/

const int mxN = 3e5 + 5;

int N;
int X[mxN], Y[mxN];

namespace sub12 {
    bool check_condition() {
        return ((N == 2 && *max_element(X, X + N) <= 100 && *max_element(Y, Y + N) <= 100) ||
                (*min_element(X, X + N) == *max_element(X, X + N) && *min_element(Y, Y + N) == *max_element(Y, Y + N)));
    }

    void solve() {
        int ans = 0;
        int ptr = 0;
        for (int i = 0; i < N; ++i) {
            while (X[ptr] == 0)
                ptr++;

            if (ptr >= i)
                continue;

            int val = min(X[ptr], Y[i]);
            X[ptr] -= val;
            Y[i] -= val;
            ans += val;
        }

        for (int i = 0; i < N; ++i) {
            int val = min(X[i], Y[i]);
            X[i] -= val;
            Y[i] -= val;
        }

        for (int i = 0; i < N; ++i)
            ans -= Y[i];

        cout << ans << '\n';
    }
}

void solve() {
    cin >> N;

    for (int i = 0; i < N; ++i)
        cin >> X[i];

    for (int i = 0; i < N; ++i)
        cin >> Y[i];

    if (sub12 :: check_condition())
        sub12 :: solve();
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int32_t main()':
Main.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen(CODE".inp", "r", stdin), freopen(CODE".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:17:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen(CODE".inp", "r", stdin), freopen(CODE".out", "w", stdout);
      |                                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 9 / 9
• Subtask 3: 0 / 19
• Subtask 4: 0 / 24
• Subtask 5: 0 / 32