Submission #434516

#	Time	Username	Problem	Language	Result	Execution time	Memory
434516		MohammadAghil	Bank (IZhO14_bank)	C++14	0 / 100	1074 ms	332 KiB

bank

#include <bits/stdc++.h> 
using namespace std;
typedef long long ll;
#define rep(i,l,r) for(int i = (l); i < r; i++)
#define per(i,r,l) for(int i = (r); i >= l; i--)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define pb push_back
#define ff first
#define ss second 

const ll mod = 1e9 + 7, maxn = 20, inf = 1e9 + 5;

int a[maxn], c[maxn];
pair<int, int> dp[1 << maxn];

int main(){
    freopen("bank.in", "r", stdin);
    freopen("bank.out", "w", stdout);
    int n, m; cin >> n >> m;
    rep(i,0,n) cin >> a[i];
    rep(i,0,m) cin >> c[i];
    dp[0] = {0, 0};
    rep(b, 1, 1 << m){
        rep(i,0,m){
            if(b & (1 << i)){
                int t = a[dp[(b & (1 << i))].ff] - dp[(b&(1 << i))].ss;
                pair<int, int> p = dp[b];
                if(t == c[i]){
                    p.ff++;
                    p.ss = 0;
                }else if(t > c[i]){
                    p.ss += c[i];
                }else{
                    continue;
                }
                dp[b] = p;
                if(p.ff == n){
                    return cout << "YES\n", 0;
                }
            }
        }
    }
    cout << "NO\n";
    return 0;
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:18:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     freopen("bank.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:19:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     freopen("bank.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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