Submission #717751

#	Time	Username	Problem	Language	Result	Execution time	Memory
717751		tigar	Bank (IZhO14_bank)	C++14	100 / 100	117 ms	8672 KiB

bank

#include <bits/stdc++.h>

using namespace std;
int people[30], pay[30];
int n, m;
pair<int, int>dp[(1<<21)];

int main()
{
    #define name "bank"
    if(fopen(name".inp", "r")){
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }

    ios_base::sync_with_stdio(); cin.tie(); cout.tie();
    cin>>n>>m;
    for(int i=0; i<n; i++)cin>>people[i];
    for(int j=0; j<m; j++)cin>>pay[j];
    bool dobraa=false;
    for(int i=0; i<(1<<m); i++)
    {
        if(dp[i].first==n){dobraa=true; break;}
        for(int j=0; j<m; j++)
        {
            if(((1<<j)&i))continue;
            pair<int, int>pp;
            if(people[dp[i].first]==dp[i].second+pay[j]){pp={dp[i].first+1, 0};}
            else pp={dp[i].first, dp[i].second+pay[j]};
            dp[(i|(1<<j))]=max(pp, dp[(i|(1<<j))]);
        }
    }
    if(dobraa)cout<<"YES\n";
    else cout<<"NO\n";
    return 0;
}
/*1 8
9
1 1 1 1 1 1 1 1*/

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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