Submission #91118

#	Time	Username	Problem	Language	Result	Execution time	Memory
91118		Hideo	Bank (IZhO14_bank)	C++14	52 / 100	1076 ms	4568 KiB

bank

#include <bits/stdc++.h>
#define mk make_pair

using namespace std;

const int N = 25;

int dp[N][1 << 16], a[N], b[N], sum[1 << 16];
int n, m;

main(){
    cin >> n >> m;
    for (int i = 1; i <= n; i++){
        scanf ("%d", &a[i]);
    }
    for (int i = 1; i <= m; i++){
        scanf ("%d", &b[i]);
    }
    for (int mask = 0; mask < (1 << m); mask++){
        for (int i = 1; i <= m; i++){
            if (mask & (1 << (i - 1))){
                sum[mask] += b[i];
            }
        }
    }
    dp[0][0] = 1;
    for (int i = 1; i <= n; i++){
        for (int mask1 = 0; mask1 < (1 << m); mask1++){
            for (int mask2 = mask1; mask2 > 0; mask2 = mask1 & (mask2 - 1)){
                if (dp[i - 1][mask1 - mask2] == 1 && sum[mask2] == a[i]){
                    dp[i][mask1] = 1;
                    break;
                }
            }
        }
    }
    for (int mask = 0; mask < (1 << m); mask++){
        if (dp[n][mask]){
            cout << "YES";
            return 0;
        }
    }
    cout << "NO";
}

Compilation message (stderr)

bank.cpp:11:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
bank.cpp: In function 'int main()':
bank.cpp:14:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", &a[i]);
         ~~~~~~^~~~~~~~~~~~~
bank.cpp:17:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", &b[i]);
         ~~~~~~^~~~~~~~~~~~~

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