oj.uz

Submission #727430

# Submission time Handle Problem Language Result Execution time Memory
727430 2023-04-20T16:14:29 Z josiftepe Bank (IZhO14_bank) C++14
100 / 100
 229 ms 113484 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 = 1;
    for(int i = 0; i < masks[salary[at]].size(); i++) {
        int tmp_mask = masks[salary[at]][i];
        if((tmp_mask & bitmask) == tmp_mask) {
            if(rec(at - 1, bitmask ^ tmp_mask)) {
                return dp[at][bitmask] = 1;
            }
        }
    }
    return dp[at][bitmask] = 0;
}
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++) {
      |                    ~~^~~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:24:9: warning: unused variable 'result' [-Wunused-variable]
   24 |     int result = 1;
      |         ^~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 106028 KB Output is correct
2 Correct 43 ms 106012 KB Output is correct
3 Correct 47 ms 106060 KB Output is correct
4 Correct 47 ms 106204 KB Output is correct
5 Correct 108 ms 112512 KB Output is correct
6 Correct 44 ms 106060 KB Output is correct
7 Correct 44 ms 106064 KB Output is correct
8 Correct 123 ms 111556 KB Output is correct
9 Correct 118 ms 112160 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 106040 KB Output is correct
2 Correct 42 ms 106140 KB Output is correct
3 Correct 47 ms 106128 KB Output is correct
4 Correct 44 ms 106096 KB Output is correct
5 Correct 45 ms 106020 KB Output is correct
6 Correct 42 ms 106028 KB Output is correct
7 Correct 43 ms 105996 KB Output is correct
8 Correct 45 ms 106040 KB Output is correct
9 Correct 44 ms 106132 KB Output is correct
10 Correct 44 ms 106136 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 106212 KB Output is correct
2 Correct 42 ms 106188 KB Output is correct
3 Correct 45 ms 106320 KB Output is correct
4 Correct 47 ms 106168 KB Output is correct
5 Correct 45 ms 106324 KB Output is correct
6 Correct 56 ms 106168 KB Output is correct
7 Correct 46 ms 106156 KB Output is correct
8 Correct 46 ms 106212 KB Output is correct
9 Correct 45 ms 106168 KB Output is correct
10 Correct 45 ms 106220 KB Output is correct
11 Correct 47 ms 106208 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 106028 KB Output is correct
2 Correct 43 ms 106012 KB Output is correct
3 Correct 47 ms 106060 KB Output is correct
4 Correct 47 ms 106204 KB Output is correct
5 Correct 108 ms 112512 KB Output is correct
6 Correct 44 ms 106060 KB Output is correct
7 Correct 44 ms 106064 KB Output is correct
8 Correct 123 ms 111556 KB Output is correct
9 Correct 118 ms 112160 KB Output is correct
10 Correct 43 ms 106040 KB Output is correct
11 Correct 42 ms 106140 KB Output is correct
12 Correct 47 ms 106128 KB Output is correct
13 Correct 44 ms 106096 KB Output is correct
14 Correct 45 ms 106020 KB Output is correct
15 Correct 42 ms 106028 KB Output is correct
16 Correct 43 ms 105996 KB Output is correct
17 Correct 45 ms 106040 KB Output is correct
18 Correct 44 ms 106132 KB Output is correct
19 Correct 44 ms 106136 KB Output is correct
20 Correct 44 ms 106212 KB Output is correct
21 Correct 42 ms 106188 KB Output is correct
22 Correct 45 ms 106320 KB Output is correct
23 Correct 47 ms 106168 KB Output is correct
24 Correct 45 ms 106324 KB Output is correct
25 Correct 56 ms 106168 KB Output is correct
26 Correct 46 ms 106156 KB Output is correct
27 Correct 46 ms 106212 KB Output is correct
28 Correct 45 ms 106168 KB Output is correct
29 Correct 45 ms 106220 KB Output is correct
30 Correct 47 ms 106208 KB Output is correct
31 Correct 117 ms 112568 KB Output is correct
32 Correct 114 ms 111820 KB Output is correct
33 Correct 124 ms 112244 KB Output is correct
34 Correct 115 ms 112716 KB Output is correct
35 Correct 118 ms 113484 KB Output is correct
36 Correct 112 ms 113080 KB Output is correct
37 Correct 117 ms 113444 KB Output is correct
38 Correct 107 ms 113192 KB Output is correct
39 Correct 107 ms 110940 KB Output is correct
40 Correct 112 ms 113000 KB Output is correct
41 Correct 108 ms 112480 KB Output is correct
42 Correct 125 ms 111564 KB Output is correct
43 Correct 118 ms 113344 KB Output is correct
44 Correct 121 ms 113424 KB Output is correct
45 Correct 109 ms 112404 KB Output is correct
46 Correct 112 ms 113344 KB Output is correct
47 Correct 114 ms 112860 KB Output is correct
48 Correct 109 ms 111692 KB Output is correct
49 Correct 109 ms 111848 KB Output is correct
50 Correct 109 ms 110868 KB Output is correct
51 Correct 130 ms 111936 KB Output is correct
52 Correct 229 ms 111032 KB Output is correct
53 Correct 105 ms 110940 KB Output is correct
54 Correct 105 ms 110828 KB Output is correct
55 Correct 105 ms 110884 KB Output is correct
56 Correct 107 ms 111184 KB Output is correct
57 Correct 136 ms 111192 KB Output is correct
58 Correct 111 ms 111152 KB Output is correct