Submission #880906

#	Time	Username	Problem	Language	Result	Execution time	Memory
880906		gazizmadi11	Bank (IZhO14_bank)	C++14	0 / 100	2 ms	348 KiB

bank

//gm  --- akezhon
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define int long long
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
using namespace std;
const int N=1e5+7;
const int mod=1e9+7;
const int inf=1e18;
int n, m;
int a[30];
int b[30];
int dp[N];
void AlemAmenov(){
	
	cin >> n >> m;
	for(int i=1; i <= n; i++){
		cin >> a[i];
		a[i] += a[i-1];
	}
	for(int i=1; i < m; i++)cin >> b[i];
	for(int mask=1; mask < (1<<m); mask++){
		int s=0, x=0;
		for(int i=1; i <= m; i++)if((1<<(i-1))&mask)s+=b[i];
		for(int i=1; i <= n; i++)if(s == a[i])x = i;
		if(!x){
			for(int i=1; i <= m; i++){
				if((1<<(i-1))&mask)dp[mask] = (dp[mask - (1<<(i-1))], dp[mask]);
			}
		} 
		else {
			for(int i=1; i <= m; i++){
				if((1<<(i-1))&mask && dp[mask-(1<<(i-1))] == x-1)dp[mask] = x;
			}
		}
		if(dp[mask] == n){
			cout << "YES";
			return;
		}
	}
	cout << "NO";
}
signed main(){
 
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	 freopen("bank.in", "r", stdin);
	 freopen("bank.out", "w", stdout);
	int RealName=1;
//	cin >> RealName;

//	 int C=0;
	while(RealName--){
//		 cout << "Case " << ++C << ":\n";
		AlemAmenov();
	}
 
return 0;
}

Compilation message (stderr)

bank.cpp: In function 'void AlemAmenov()':
bank.cpp:39:56: warning: left operand of comma operator has no effect [-Wunused-value]
   39 |     if((1<<(i-1))&mask)dp[mask] = (dp[mask - (1<<(i-1))], dp[mask]);
      |                                    ~~~~~~~~~~~~~~~~~~~~^
bank.cpp: In function 'int main()':
bank.cpp:59:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |   freopen("bank.in", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:60:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |   freopen("bank.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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