oj.uz

Submission #634230

# Submission time Handle Problem Language Result Execution time Memory
634230 2022-08-24T07:24:08 Z Mahdi Subtree (INOI20_subtree) C++17
8 / 100
 318 ms 1312 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
#define F first
#define S second
typedef long long ll;
typedef pair<int, int> pii;
const int N=25, M=2e6;
int n, m;
bool g[N][N], a[M];

int main(){
    cin>>n>>m;
    int ans=0;
    for(int i=0;i<m;++i){
        int u, v;
        cin>>u>>v;
        g[--u][--v]=1;
        g[v][u]=1;
    }
    a[0]=1;
    for(int i=1;i<(1<<n);++i){
        int x=i;
        vector<int>w;
        for(int j=0;x;++j){
            if(x&1)
                w.push_back(j);
            x>>=1;
        }
        int t=0;
        for(int u: w){
            for(int v: w){
                if(g[u][v])
                    ++t;
            }
        }
        t/=2;
        if(t!=w.size()-1){
            continue;
        }
        for(int u: w){
            if(a[i-(1<<u)]){
                a[i]=1;
                break;
            }
        }
        if(a[i])
            ++ans;
    }
    cout<<ans<<'\n';
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:38:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         if(t!=w.size()-1){
      |            ~^~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 287 ms 828 KB Output is correct
9 Correct 281 ms 684 KB Output is correct
10 Correct 283 ms 464 KB Output is correct
11 Correct 279 ms 332 KB Output is correct
12 Correct 133 ms 376 KB Output is correct
13 Correct 273 ms 760 KB Output is correct
14 Correct 134 ms 588 KB Output is correct
15 Correct 130 ms 516 KB Output is correct
16 Correct 274 ms 720 KB Output is correct
17 Correct 137 ms 764 KB Output is correct
18 Correct 134 ms 492 KB Output is correct
19 Correct 132 ms 448 KB Output is correct
20 Correct 275 ms 728 KB Output is correct
21 Correct 279 ms 556 KB Output is correct
22 Correct 150 ms 588 KB Output is correct
23 Correct 274 ms 1312 KB Output is correct
24 Correct 151 ms 752 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 7 ms 340 KB Output is correct
29 Correct 131 ms 588 KB Output is correct
30 Correct 269 ms 532 KB Output is correct
31 Correct 130 ms 444 KB Output is correct
32 Correct 138 ms 584 KB Output is correct
33 Correct 130 ms 532 KB Output is correct
34 Correct 269 ms 856 KB Output is correct
35 Correct 276 ms 560 KB Output is correct
36 Correct 269 ms 604 KB Output is correct
37 Correct 318 ms 580 KB Output is correct
38 Correct 269 ms 448 KB Output is correct
39 Correct 286 ms 552 KB Output is correct
40 Correct 270 ms 576 KB Output is correct
41 Correct 283 ms 496 KB Output is correct
42 Correct 135 ms 540 KB Output is correct
43 Correct 132 ms 404 KB Output is correct
44 Correct 273 ms 748 KB Output is correct
45 Correct 277 ms 460 KB Output is correct
46 Correct 269 ms 492 KB Output is correct
47 Correct 293 ms 580 KB Output is correct
48 Correct 275 ms 788 KB Output is correct
49 Correct 269 ms 472 KB Output is correct
50 Correct 273 ms 704 KB Output is correct
51 Correct 276 ms 548 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 287 ms 828 KB Output is correct
9 Correct 281 ms 684 KB Output is correct
10 Correct 283 ms 464 KB Output is correct
11 Correct 279 ms 332 KB Output is correct
12 Correct 133 ms 376 KB Output is correct
13 Correct 273 ms 760 KB Output is correct
14 Correct 134 ms 588 KB Output is correct
15 Correct 130 ms 516 KB Output is correct
16 Correct 274 ms 720 KB Output is correct
17 Correct 137 ms 764 KB Output is correct
18 Correct 134 ms 492 KB Output is correct
19 Correct 132 ms 448 KB Output is correct
20 Correct 275 ms 728 KB Output is correct
21 Correct 279 ms 556 KB Output is correct
22 Correct 150 ms 588 KB Output is correct
23 Correct 274 ms 1312 KB Output is correct
24 Correct 151 ms 752 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 7 ms 340 KB Output is correct
29 Correct 131 ms 588 KB Output is correct
30 Correct 269 ms 532 KB Output is correct
31 Correct 130 ms 444 KB Output is correct
32 Correct 138 ms 584 KB Output is correct
33 Correct 130 ms 532 KB Output is correct
34 Correct 269 ms 856 KB Output is correct
35 Correct 276 ms 560 KB Output is correct
36 Correct 269 ms 604 KB Output is correct
37 Correct 318 ms 580 KB Output is correct
38 Correct 269 ms 448 KB Output is correct
39 Correct 286 ms 552 KB Output is correct
40 Correct 270 ms 576 KB Output is correct
41 Correct 283 ms 496 KB Output is correct
42 Correct 135 ms 540 KB Output is correct
43 Correct 132 ms 404 KB Output is correct
44 Correct 273 ms 748 KB Output is correct
45 Correct 277 ms 460 KB Output is correct
46 Correct 269 ms 492 KB Output is correct
47 Correct 293 ms 580 KB Output is correct
48 Correct 275 ms 788 KB Output is correct
49 Correct 269 ms 472 KB Output is correct
50 Correct 273 ms 704 KB Output is correct
51 Correct 276 ms 548 KB Output is correct
52 Runtime error 1 ms 452 KB Execution killed with signal 11
53 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 287 ms 828 KB Output is correct
9 Correct 281 ms 684 KB Output is correct
10 Correct 283 ms 464 KB Output is correct
11 Correct 279 ms 332 KB Output is correct
12 Correct 133 ms 376 KB Output is correct
13 Correct 273 ms 760 KB Output is correct
14 Correct 134 ms 588 KB Output is correct
15 Correct 130 ms 516 KB Output is correct
16 Correct 274 ms 720 KB Output is correct
17 Correct 137 ms 764 KB Output is correct
18 Correct 134 ms 492 KB Output is correct
19 Correct 132 ms 448 KB Output is correct
20 Correct 275 ms 728 KB Output is correct
21 Correct 279 ms 556 KB Output is correct
22 Correct 150 ms 588 KB Output is correct
23 Correct 274 ms 1312 KB Output is correct
24 Correct 151 ms 752 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 7 ms 340 KB Output is correct
29 Correct 131 ms 588 KB Output is correct
30 Correct 269 ms 532 KB Output is correct
31 Correct 130 ms 444 KB Output is correct
32 Correct 138 ms 584 KB Output is correct
33 Correct 130 ms 532 KB Output is correct
34 Correct 269 ms 856 KB Output is correct
35 Correct 276 ms 560 KB Output is correct
36 Correct 269 ms 604 KB Output is correct
37 Correct 318 ms 580 KB Output is correct
38 Correct 269 ms 448 KB Output is correct
39 Correct 286 ms 552 KB Output is correct
40 Correct 270 ms 576 KB Output is correct
41 Correct 283 ms 496 KB Output is correct
42 Correct 135 ms 540 KB Output is correct
43 Correct 132 ms 404 KB Output is correct
44 Correct 273 ms 748 KB Output is correct
45 Correct 277 ms 460 KB Output is correct
46 Correct 269 ms 492 KB Output is correct
47 Correct 293 ms 580 KB Output is correct
48 Correct 275 ms 788 KB Output is correct
49 Correct 269 ms 472 KB Output is correct
50 Correct 273 ms 704 KB Output is correct
51 Correct 276 ms 548 KB Output is correct
52 Incorrect 1 ms 212 KB Output isn't correct
53 Halted 0 ms 0 KB -