Submission #839168

#	Time	Username	Problem	Language	Result	Execution time	Memory
839168		DeathIsAwe	Bank (IZhO14_bank)	C++17	100 / 100	91 ms	8544 KiB

bank

#include <bits/stdc++.h>
using namespace std;
int dp[10000000],rem[10000000];

int main() {
    int n,m; cin >> n >> m;
    vector<int> people(n),notes(m);
    for (int i=0;i<n;i++) {
        cin >> people[i];
    }
    for (int i=0;i<m;i++) {
        cin >> notes[i];
    }

    int miss,maxdp,temp,temp2; dp[0]=0; rem[0]=0;
    for (int i=1;i<(int)pow(2,m);i++) {
        temp2=1;
        maxdp=-1;
        for (int j=0;j<m;j++) {
            if ((i^temp2)<i && maxdp<dp[(i^temp2)]) {
                temp=(i^temp2);
                maxdp=dp[(i^temp2)];
                miss=j;
            }
            temp2*=2;
        }
        if (rem[temp]+notes[miss]==people[maxdp]) {
            dp[i]=maxdp+1;
            rem[i]=0;
        } else {
            dp[i]=maxdp;
            rem[i]=rem[temp]+notes[miss];
        }
        if (dp[i]==n) {
            cout << "YES"; return 0;
        }
    }
    cout << "NO";
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:27:21: warning: 'temp' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |         if (rem[temp]+notes[miss]==people[maxdp]) {
      |             ~~~~~~~~^
bank.cpp:27:33: warning: 'miss' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |         if (rem[temp]+notes[miss]==people[maxdp]) {
      |                                 ^

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