Submission #392374

#	Time	Username	Problem	Language	Result	Execution time	Memory
392374		SirCovidThe19th	Bank (IZhO14_bank)	C++14	0 / 100	3 ms	412 KiB

bank

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

int main(){
    //n people, m banknotes
    int n, m;
    cin >> n >> m;
    int salary[n];
    int banknote[m];

    for (int i = 0; i < n; i++){
        cin >> salary[i];
        if (i != 0)
            salary[i] += salary[i-1];
    }
    for (int i = 0; i < m; i++) 
        cin >> banknote[i];
    
    int dp[1<<m];
    int sum[1<<m];
    memset(dp, 0, sizeof(dp));
    memset(sum, 0, sizeof(sum));
    for (int i = 1; i < (1<<m); i++)
        for (int j = 0; j < m; j++)
            if ((i&(1<<j)) != 0) sum[i] += banknote[j];

    bool valid = false;
    for (int i = 1; i < (1<<m); i++){
        for (int j = 0; j < m; j++){
            if ((i&(1<<j)) == 0)
                continue;
            if (sum[i^(1<<j)]+banknote[j] == salary[j])
                dp[i] = max(dp[i], dp[i^(1<<j)]+1);
            else
                dp[i] = max(dp[i], dp[i^(1<<j)]);
        }
        if (dp[i] == n)
            valid = true;
    }
    if (valid)
        cout<<"YES";
    else
        cout<<"NO";
} 

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