Submission #658857

#	Time	Username	Problem	Language	Result	Execution time	Memory
658857		a_aguilo	Bank (IZhO14_bank)	C++14	71 / 100	1095 ms	86388 KiB

bank

#include<bits/stdc++.h>

using namespace std;

int main(){
    int n, m;
    cin >> n >> m;
    int salaries[n];
    int banknotes[m];
    for(int i = 0; i < n; ++i) cin >> salaries[i];
    for(int i = 0; i < m; ++i) cin >> banknotes[i];
    int DP[1<<m][n+1];
    memset(DP, -1, sizeof(DP));
    DP[0][0] = 0;
    for(int mask = 1; mask < (1 << m); ++mask){
        for(int note = 0; note < m; ++note){
            if(mask&(1<<note)){
                DP[mask][0] = DP[mask^(1<<note)][0] + banknotes[note];
            }
        }
        //cout << DP[mask][0] << endl;
    }
    bool IsPossible = false;
    for(int person = 1; person <= n; ++person){
        for(int mask = 1; mask < (1<<m); ++mask){
            if(DP[mask][person-1] == salaries[person-1]) DP[mask][person] = 0;
            for(int note = 0; note < m; ++note){
                if(mask&(1<<note)){
                    if(DP[mask^(1 << note)][person] != -1){
                        DP[mask][person] = DP[mask^(1<<note)][person]+banknotes[note];
                    }
                }
            }
            if((person == n) and (DP[mask][person] != -1)) IsPossible = true;
        }
    }
    if(IsPossible) cout << "YES" << endl;
    else cout << "NO" << endl;
    return 0;
}

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