제출 #1018673

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1018673		VarTech	은행 (IZhO14_bank)	C++17	0 / 100	2 ms	348 KiB

bank

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

#define int long long


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

    freopen("input.txt", "r" , stdin);
    freopen("output.txt", "w", stdout);
 
    
    int n, k; cin>>n>>k;
    int a[n];
    for (int i = 0; i < n; i++)
        cin>>a[i];
    pair<int, int> dp[1<<n];
    dp[0] = {0, k+1};
    for (int s = 1; s < (1<<n); s++) {
        dp[s] = {25, 0};
        for (int i = 0; i < n; i++) {
            if (s>>i&1){
                auto [c, w] = dp[s^(1<<i)];
                if (w + a[i] > k) {
                    c++;
                    w = min(a[i], w);
                }
                else
                    w += a[i];
                dp[s] = min(dp[s], {c, w});
            }
        }
  
    }
    cout<<dp[(1<<n)-1].first;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("input.txt", "r" , stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29