Submission #10637

# Submission time Handle Problem Language Result Execution time Memory
10637 2014-10-30T08:55:09 Z gs14004 Bank (IZhO14_bank) C++
100 / 100
228 ms 14720 KB
#include <cstdio>
#include <cstdlib>
#include <vector>
using namespace std;

vector<int> a_bit[20];
int n,m,a[20],b[20];

void trial_bit(int v){
    int res = 0;
    for (int i=0; i<m; i++) {
        if((v>>i)&1) res += b[i];
    }
    for (int i=0; i<n; i++) {
        if(a[i] == res) a_bit[i].push_back(v);
    }
}

bool vis[20][1<<20];
void f(int pos, int v){
    if(pos == n){
        puts("YES");
        exit(0);
    }
    if(vis[pos][v]) return;
    vis[pos][v] = 1;
    for (int i=0; i<a_bit[pos].size(); i++) {
        if((a_bit[pos][i] & ~v) == 0) f(pos+1,v^a_bit[pos][i]);
    }
}

int main(){
    scanf("%d %d",&n,&m);
    for (int i=0; i<n; i++) {
        scanf("%d",&a[i]);
    }
    for (int i=0; i<m; i++) {
        scanf("%d",&b[i]);
    }
    for (int i=0; i<(1<<m); i++) {
        trial_bit(i);
    }
    f(0,(1<<m)-1);
    puts("NO");
}

Compilation message

bank.cpp: In function 'void f(int, int)':
bank.cpp:27:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0; i<a_bit[pos].size(); i++) {
                   ~^~~~~~~~~~~~~~~~~~
bank.cpp: In function 'int main()':
bank.cpp:33:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~
bank.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]);
         ~~~~~^~~~~~~~~~~~
bank.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&b[i]);
         ~~~~~^~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 500 KB Output is correct
3 Correct 2 ms 500 KB Output is correct
4 Correct 4 ms 500 KB Output is correct
5 Correct 70 ms 500 KB Output is correct
6 Correct 2 ms 500 KB Output is correct
7 Correct 2 ms 500 KB Output is correct
8 Correct 70 ms 504 KB Output is correct
9 Correct 70 ms 536 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 536 KB Output is correct
2 Correct 2 ms 552 KB Output is correct
3 Correct 2 ms 552 KB Output is correct
4 Correct 2 ms 572 KB Output is correct
5 Correct 2 ms 580 KB Output is correct
6 Correct 2 ms 580 KB Output is correct
7 Correct 2 ms 580 KB Output is correct
8 Correct 2 ms 580 KB Output is correct
9 Correct 2 ms 580 KB Output is correct
10 Correct 2 ms 584 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 584 KB Output is correct
2 Correct 3 ms 584 KB Output is correct
3 Correct 3 ms 584 KB Output is correct
4 Correct 3 ms 584 KB Output is correct
5 Correct 3 ms 584 KB Output is correct
6 Correct 3 ms 584 KB Output is correct
7 Correct 2 ms 584 KB Output is correct
8 Correct 3 ms 584 KB Output is correct
9 Correct 3 ms 584 KB Output is correct
10 Correct 3 ms 584 KB Output is correct
11 Correct 3 ms 584 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 500 KB Output is correct
3 Correct 2 ms 500 KB Output is correct
4 Correct 4 ms 500 KB Output is correct
5 Correct 70 ms 500 KB Output is correct
6 Correct 2 ms 500 KB Output is correct
7 Correct 2 ms 500 KB Output is correct
8 Correct 70 ms 504 KB Output is correct
9 Correct 70 ms 536 KB Output is correct
10 Correct 2 ms 536 KB Output is correct
11 Correct 2 ms 552 KB Output is correct
12 Correct 2 ms 552 KB Output is correct
13 Correct 2 ms 572 KB Output is correct
14 Correct 2 ms 580 KB Output is correct
15 Correct 2 ms 580 KB Output is correct
16 Correct 2 ms 580 KB Output is correct
17 Correct 2 ms 580 KB Output is correct
18 Correct 2 ms 580 KB Output is correct
19 Correct 2 ms 584 KB Output is correct
20 Correct 3 ms 584 KB Output is correct
21 Correct 3 ms 584 KB Output is correct
22 Correct 3 ms 584 KB Output is correct
23 Correct 3 ms 584 KB Output is correct
24 Correct 3 ms 584 KB Output is correct
25 Correct 3 ms 584 KB Output is correct
26 Correct 2 ms 584 KB Output is correct
27 Correct 3 ms 584 KB Output is correct
28 Correct 3 ms 584 KB Output is correct
29 Correct 3 ms 584 KB Output is correct
30 Correct 3 ms 584 KB Output is correct
31 Correct 72 ms 592 KB Output is correct
32 Correct 74 ms 976 KB Output is correct
33 Correct 77 ms 976 KB Output is correct
34 Correct 79 ms 976 KB Output is correct
35 Correct 81 ms 976 KB Output is correct
36 Correct 88 ms 976 KB Output is correct
37 Correct 73 ms 976 KB Output is correct
38 Correct 76 ms 976 KB Output is correct
39 Correct 77 ms 976 KB Output is correct
40 Correct 79 ms 976 KB Output is correct
41 Correct 87 ms 976 KB Output is correct
42 Correct 83 ms 3936 KB Output is correct
43 Correct 77 ms 3936 KB Output is correct
44 Correct 83 ms 3936 KB Output is correct
45 Correct 74 ms 3936 KB Output is correct
46 Correct 76 ms 3936 KB Output is correct
47 Correct 84 ms 3936 KB Output is correct
48 Correct 70 ms 3936 KB Output is correct
49 Correct 70 ms 3936 KB Output is correct
50 Correct 88 ms 3936 KB Output is correct
51 Correct 79 ms 3936 KB Output is correct
52 Correct 79 ms 3936 KB Output is correct
53 Correct 79 ms 3936 KB Output is correct
54 Correct 87 ms 3936 KB Output is correct
55 Correct 87 ms 3936 KB Output is correct
56 Correct 87 ms 3936 KB Output is correct
57 Correct 228 ms 14720 KB Output is correct
58 Correct 86 ms 14720 KB Output is correct