제출 #973771

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
973771		Bilal_Coder	은행 (IZhO14_bank)	C++17	19 / 100	161 ms	600 KiB

bank

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n , m;
    scanf("%d %d" , &n , &m);
    vector<int> a(n) , b(m);
    vector<bool> used(m , true);
    for (auto & x : a)scanf("%d" , &x);
    for (auto & x : b)scanf("%d" , &x);
    for (auto x : a){
        bool flag = false;
        for (int mask = 0; mask < (1 << m); mask++){
            int sum = 0;
            vector<int> v;
            for (int i = 0; i < m; i++)
                if (mask & (1 << i) and used[b[i]]){
                    sum += b[i];
                    v.push_back(b[i]);
                }

            if (sum == x){
                for (auto xx : v)used[xx] = false;
                flag = true;
                break;
            }
        }
        if (!flag){
            puts("NO");
            return 0;
        }
    }
    puts("YES");
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |     scanf("%d %d" , &n , &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
bank.cpp:9:28: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     for (auto & x : a)scanf("%d" , &x);
      |                       ~~~~~^~~~~~~~~~~
bank.cpp:10:28: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     for (auto & x : b)scanf("%d" , &x);
      |                       ~~~~~^~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29