Submission #833630

#	Time	Username	Problem	Language	Result	Execution time	Memory
833630		BilAktauAlmansur	Bank (IZhO14_bank)	C++17	0 / 100	2 ms	340 KiB

bank

#include <bits/stdc++.h>
// #pragma optimize ("g",on)
// #pragma GCC optimize ("inline")
// #pragma GCC optimize ("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC optimize ("03")
// #pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
// #pragma comment(linker, "/stack:200000000")
// #define int long long
using namespace std;
int n, m;
int a[27], b[27];
signed main() {
    freopen("bank.in", "r", stdin); 
    freopen("bank.out", "w", stdout);
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cin>>n>>m;
    for(int i = 1; i <= n; i++)cin>>a[i];
    for(int i = 1; i <= m; i++)cin>>b[i];
    sort(b + 1, b + 1 + m);
    bool ok = 0;
    do {
        int cnt = 0;
        int i = 1;
        bool f = 1;
        for(int j = 1; j <= m; j++) {
            if(cnt + b[j] == a[i]) {
                i++;
                if(i == n + 1)break;
                cnt = 0;
            }else if(cnt + b[j] > a[i]) {
                f = 0;
                break;
            }else cnt += b[j];
        }
        if(f)ok = 1;
    }while(next_permutation(b + 1, b + 1 + m));
    cout << (ok ? "YES\n" : "NO\n");
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     freopen("bank.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("bank.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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