oj.uz

Submission #716633

# Submission time Handle Problem Language Result Execution time Memory
716633 2023-03-30T15:32:47 Z nonono Bank (IZhO14_bank) C++14
100 / 100
 72 ms 8532 KB 
#include "bits/stdc++.h"
#define SZ(x) (int)(x.size())
using namespace std;

const int mxN = 20;
int n, m, a[mxN], b[mxN];
pair<int, int> dp[1 << mxN];

signed main(){
    #define name "bank"
    if(fopen(name".inp", "r")){
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }

    ios_base::sync_with_stdio(); cin.tie(); cout.tie();
    
    cin >> n >> m;
    for(int i = 0; i < n; i ++) cin >> a[i];
    for(int i = 0; i < m; i ++) cin >> b[i];
    
    for(int mask = 0; mask < (1 << m); mask ++)
        dp[mask] = {-1, 0};
    
    dp[0] = {0, 0};
    for(int mask = 0; mask < (1 << m); mask ++){
        
        for(int x = mask; x > 0; x ^= x & (- x)){
            int i = __builtin_ctz(x & (- x));
            
            int nmask = mask ^ (1 << i);
            if(dp[nmask].first == -1) continue ;
            
            int j = dp[nmask].first;
            if(dp[nmask].second + b[i] < a[j]) dp[mask] = {j, dp[nmask].second + b[i]};
            if(dp[nmask].second + b[i] == a[j]) dp[mask] = {j + 1, 0};  
            
            if(dp[mask].first == n){
                cout << "YES\n";
                exit(0);
            } 
        }
    }
    
    cout << "NO\n";
    return 0;
}

Compilation message

bank.cpp: In function 'int main()':
bank.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 24 ms 8504 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 6 ms 8404 KB Output is correct
9 Correct 49 ms 8524 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 304 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 432 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 432 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 24 ms 8504 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 6 ms 8404 KB Output is correct
9 Correct 49 ms 8524 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 304 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 432 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 432 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 436 KB Output is correct
27 Correct 1 ms 436 KB Output is correct
28 Correct 1 ms 436 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 51 ms 8500 KB Output is correct
32 Correct 58 ms 8404 KB Output is correct
33 Correct 38 ms 8496 KB Output is correct
34 Correct 23 ms 8496 KB Output is correct
35 Correct 22 ms 8504 KB Output is correct
36 Correct 24 ms 8532 KB Output is correct
37 Correct 22 ms 8404 KB Output is correct
38 Correct 22 ms 8404 KB Output is correct
39 Correct 5 ms 8404 KB Output is correct
40 Correct 23 ms 8404 KB Output is correct
41 Correct 31 ms 8488 KB Output is correct
42 Correct 72 ms 8500 KB Output is correct
43 Correct 25 ms 8404 KB Output is correct
44 Correct 22 ms 8504 KB Output is correct
45 Correct 5 ms 8404 KB Output is correct
46 Correct 47 ms 8500 KB Output is correct
47 Correct 23 ms 8404 KB Output is correct
48 Correct 5 ms 8404 KB Output is correct
49 Correct 22 ms 8500 KB Output is correct
50 Correct 43 ms 8504 KB Output is correct
51 Correct 24 ms 8404 KB Output is correct
52 Correct 25 ms 8500 KB Output is correct
53 Correct 44 ms 8496 KB Output is correct
54 Correct 42 ms 8412 KB Output is correct
55 Correct 38 ms 8404 KB Output is correct
56 Correct 40 ms 8524 KB Output is correct
57 Correct 40 ms 8404 KB Output is correct
58 Correct 45 ms 8488 KB Output is correct