oj.uz

Submission #727431

# Submission time Handle Problem Language Result Execution time Memory
727431 2023-04-20T16:15:32 Z josiftepe Bank (IZhO14_bank) C++14
100 / 100
 252 ms 113536 KB 
#include <iostream>
#include <fstream>
#include <vector>
#include <map>
#include <cstring>
#include <queue>
#include <algorithm>
//#include <bits/stdc++.h>

using namespace std;
const int maxn = 1005 * 1005;
vector<int> masks[maxn];
int salary[maxn];
int notes[maxn];
int dp[20][1 << 20];
int rec(int at, int bitmask) {
    if(at == -1) {
        return 1;
    }
  
    if(dp[at][bitmask] != -1) {
        return dp[at][bitmask];
    }
    int result = 0;
    for(int i = 0; i < masks[salary[at]].size(); i++) {
        int tmp_mask = masks[salary[at]][i];
        if((tmp_mask & bitmask) == tmp_mask) {
            result |= rec(at - 1, bitmask ^ tmp_mask);
        }
    }
    return dp[at][bitmask] = result;
}
int main() {
    ios::sync_with_stdio(0);
    int n, m;
    cin >> n >> m;
 
    for(int i = 0; i < n; i++) {
        cin >> salary[i];
    }
    for(int i = 0; i < m; i++) {
        cin >> notes[i];
    }
    for(int bitmask = 0; bitmask < (1 << m); bitmask++) {
        int sum = 0;
        for(int i = 0; i < m; i++) {
            if(bitmask & (1 << i)) {
                sum += notes[i];
            }
        }
        masks[sum].push_back(bitmask);
    }
    memset(dp, -1, sizeof dp);
    cout << (rec(n - 1, (1 << m) - 1) == 1 ? "YES" : "NO") << endl;
    return 0;
}

Compilation message

bank.cpp: In function 'int rec(int, int)':
bank.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     for(int i = 0; i < masks[salary[at]].size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 106072 KB Output is correct
2 Correct 45 ms 106040 KB Output is correct
3 Correct 49 ms 106040 KB Output is correct
4 Correct 43 ms 106228 KB Output is correct
5 Correct 105 ms 112396 KB Output is correct
6 Correct 43 ms 106120 KB Output is correct
7 Correct 44 ms 106060 KB Output is correct
8 Correct 110 ms 111564 KB Output is correct
9 Correct 108 ms 112056 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 106024 KB Output is correct
2 Correct 42 ms 106072 KB Output is correct
3 Correct 44 ms 106132 KB Output is correct
4 Correct 43 ms 106012 KB Output is correct
5 Correct 49 ms 106040 KB Output is correct
6 Correct 54 ms 106060 KB Output is correct
7 Correct 43 ms 106000 KB Output is correct
8 Correct 44 ms 106020 KB Output is correct
9 Correct 42 ms 106144 KB Output is correct
10 Correct 43 ms 106124 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 106148 KB Output is correct
2 Correct 49 ms 106172 KB Output is correct
3 Correct 53 ms 106224 KB Output is correct
4 Correct 48 ms 106172 KB Output is correct
5 Correct 48 ms 106228 KB Output is correct
6 Correct 49 ms 106240 KB Output is correct
7 Correct 44 ms 106172 KB Output is correct
8 Correct 44 ms 106236 KB Output is correct
9 Correct 45 ms 106316 KB Output is correct
10 Correct 48 ms 106180 KB Output is correct
11 Correct 47 ms 106188 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 106072 KB Output is correct
2 Correct 45 ms 106040 KB Output is correct
3 Correct 49 ms 106040 KB Output is correct
4 Correct 43 ms 106228 KB Output is correct
5 Correct 105 ms 112396 KB Output is correct
6 Correct 43 ms 106120 KB Output is correct
7 Correct 44 ms 106060 KB Output is correct
8 Correct 110 ms 111564 KB Output is correct
9 Correct 108 ms 112056 KB Output is correct
10 Correct 43 ms 106024 KB Output is correct
11 Correct 42 ms 106072 KB Output is correct
12 Correct 44 ms 106132 KB Output is correct
13 Correct 43 ms 106012 KB Output is correct
14 Correct 49 ms 106040 KB Output is correct
15 Correct 54 ms 106060 KB Output is correct
16 Correct 43 ms 106000 KB Output is correct
17 Correct 44 ms 106020 KB Output is correct
18 Correct 42 ms 106144 KB Output is correct
19 Correct 43 ms 106124 KB Output is correct
20 Correct 50 ms 106148 KB Output is correct
21 Correct 49 ms 106172 KB Output is correct
22 Correct 53 ms 106224 KB Output is correct
23 Correct 48 ms 106172 KB Output is correct
24 Correct 48 ms 106228 KB Output is correct
25 Correct 49 ms 106240 KB Output is correct
26 Correct 44 ms 106172 KB Output is correct
27 Correct 44 ms 106236 KB Output is correct
28 Correct 45 ms 106316 KB Output is correct
29 Correct 48 ms 106180 KB Output is correct
30 Correct 47 ms 106188 KB Output is correct
31 Correct 109 ms 112624 KB Output is correct
32 Correct 252 ms 111892 KB Output is correct
33 Correct 113 ms 112324 KB Output is correct
34 Correct 111 ms 112600 KB Output is correct
35 Correct 118 ms 113516 KB Output is correct
36 Correct 113 ms 113124 KB Output is correct
37 Correct 129 ms 113468 KB Output is correct
38 Correct 114 ms 113072 KB Output is correct
39 Correct 122 ms 111008 KB Output is correct
40 Correct 107 ms 112956 KB Output is correct
41 Correct 111 ms 112500 KB Output is correct
42 Correct 118 ms 111572 KB Output is correct
43 Correct 109 ms 113392 KB Output is correct
44 Correct 122 ms 113536 KB Output is correct
45 Correct 113 ms 112332 KB Output is correct
46 Correct 109 ms 113356 KB Output is correct
47 Correct 118 ms 112836 KB Output is correct
48 Correct 113 ms 111692 KB Output is correct
49 Correct 107 ms 111944 KB Output is correct
50 Correct 112 ms 110808 KB Output is correct
51 Correct 135 ms 111948 KB Output is correct
52 Correct 226 ms 110912 KB Output is correct
53 Correct 193 ms 110972 KB Output is correct
54 Correct 114 ms 110804 KB Output is correct
55 Correct 120 ms 110916 KB Output is correct
56 Correct 149 ms 111176 KB Output is correct
57 Correct 128 ms 111312 KB Output is correct
58 Correct 126 ms 111184 KB Output is correct