Submission #737236

#	Time	Username	Problem	Language	Result	Execution time	Memory
737236		mariaclara	Bank (IZhO14_bank)	C++17	0 / 100	1067 ms	212 KiB

bank

#include<bits/stdc++.h>

using namespace std;

const int MAXN = (1<<20)+10;
#define pb push_back

int n, m, salary[25], note[25];
bool dp[MAXN];
bool solve(int i, int mask) {
    // Marca se da pra formar os valores de 1 a i
    if(i>n) return 1;
    if(dp[mask]) return 0;
    dp[mask] = 1;

    for(int l=1, r=m; l<=r; ) {
        if(mask&(l-1)) l++;
        if(mask&(r-1)) r--;
        if(note[l]+note[r]<salary[i]) l++;
        else if(note[l]+note[r]>salary[i]) r--;
        else if(solve(i+1, mask+(1<<l-1)+(1<<r-1))) return 1;
    }

    return 0;
}
int main() {
    cin >> n >> m;

    for(int i = 1; i <= n; i++) 
        cin >> salary[i];

    for(int i = 1; i <= m; i++)
        cin >> note[i];

    sort(note+1, note+1+m);

    if(solve(1,0)) cout << "YES\n";
    else cout << "NO\n";
}

Compilation message (stderr)

bank.cpp: In function 'bool solve(int, int)':
bank.cpp:21:38: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   21 |         else if(solve(i+1, mask+(1<<l-1)+(1<<r-1))) return 1;
      |                                     ~^~
bank.cpp:21:47: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   21 |         else if(solve(i+1, mask+(1<<l-1)+(1<<r-1))) return 1;
      |                                              ~^~

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