Submission #1277990

#	Time	Username	Problem	Language	Result	Execution time	Memory
1277990		turali12	Bank (IZhO14_bank)	C++20	0 / 100	1 ms	572 KiB

bank

#include<bits/stdc++.h>
using namespace std;
#define int long long int
#define all(x) x.begin(),x.end()
#define pb push_back
#define rall(x) x.rbegin(),x.rend()
const int N=1e6+1,mod=998244353,MOD=1e9+7,INF=9223372036854775807;
/*bool lex(const string &a,const string &b){
    if(a.size()!=b.size())
        return a.size()<b.size();
    return a<b;
}*/
/*bool cmp(const pair<int,int>&a,const pair<int,int>&b){
    if(a.first!=b.first){
        return a.first<b.first;
    }
    return a.second<b.second;
}*/
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    freopen("bank.in","r",stdin);
    freopen("bank.out","w",stdout);
    int testcasescount=1;
    //cin>>testcasescount;
    while(testcasescount--){
        int n,m,x;
        cin>>n>>m>>x;
        vector<int>a(m);
        for(int i=0;i<m;i++){
            cin>>a[i];
        }
        bool ch=false;
        for(int mask=0;mask<(1<<m);mask++){
            int s=0;
            for(int i=0;i<m;i++){
                if(mask>>i&1){
                    s+=a[i];
                }
            }
            if(s==x){
                ch=true;
            }
        }
        if(!ch){
            cout<<"NO";
        }
        else{
            cout<<"YES";
        }
    }
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:22:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     freopen("bank.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
bank.cpp:23:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     freopen("bank.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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