Submission #889744
Source Code Expand
#include <iostream> #include <cstdio> #define reep(i,n,m) for(int i=(n);i<(m);i++) #define rep(i,n) reep(i,0,n) using namespace std; typedef long long ll; bool a[16][16]; ll dp[1<<16]; int N,M; int main(){ cin >> N >> M; rep(i,M){ int x,y; cin >> x >> y; a[x-1][y-1] = true; } dp[0] = 1; rep(i,1<<N){ rep(k,N){ if((i&(1<<k)) == 0){ continue; } bool flg=false; rep(j,N){ if(j==k){ continue; } if(i&(1<<j) && a[k][j]){ flg=true; break; } } if(flg){ continue; } dp[i] += dp[i-(1<<k)]; } } cout << dp[(1<<N) - 1] << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - 徒競走 |
User | otama_jaccy |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 656 Byte |
Status | AC |
Exec Time | 31 ms |
Memory | 768 KB |
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 30 / 30 | 70 / 70 | ||||||
Status |
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Set Name | Test Cases |
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Sample | 0_00.txt, 0_01.txt, 0_02.txt |
Subtask1 | 0_00.txt, 0_01.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt, 2_13.txt, 2_14.txt, 2_15.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 3 ms | 256 KB |
0_01.txt | AC | 3 ms | 256 KB |
0_02.txt | AC | 31 ms | 768 KB |
1_00.txt | AC | 3 ms | 256 KB |
1_01.txt | AC | 3 ms | 256 KB |
1_02.txt | AC | 3 ms | 256 KB |
1_03.txt | AC | 3 ms | 256 KB |
1_04.txt | AC | 3 ms | 256 KB |
1_05.txt | AC | 3 ms | 256 KB |
1_06.txt | AC | 3 ms | 256 KB |
1_07.txt | AC | 3 ms | 256 KB |
1_08.txt | AC | 3 ms | 256 KB |
1_09.txt | AC | 3 ms | 256 KB |
1_10.txt | AC | 3 ms | 256 KB |
1_11.txt | AC | 3 ms | 256 KB |
1_12.txt | AC | 3 ms | 256 KB |
2_00.txt | AC | 31 ms | 768 KB |
2_01.txt | AC | 23 ms | 768 KB |
2_02.txt | AC | 23 ms | 768 KB |
2_03.txt | AC | 24 ms | 768 KB |
2_04.txt | AC | 11 ms | 512 KB |
2_05.txt | AC | 8 ms | 512 KB |
2_06.txt | AC | 12 ms | 512 KB |
2_07.txt | AC | 8 ms | 512 KB |
2_08.txt | AC | 24 ms | 768 KB |
2_09.txt | AC | 19 ms | 768 KB |
2_10.txt | AC | 19 ms | 768 KB |
2_11.txt | AC | 11 ms | 768 KB |
2_12.txt | AC | 28 ms | 768 KB |
2_13.txt | AC | 26 ms | 768 KB |
2_14.txt | AC | 27 ms | 768 KB |
2_15.txt | AC | 28 ms | 768 KB |