Submission #1406182
Source Code Expand
#include <cstdio> typedef long long i64; const int N = 15, MOD = 1000000007; int n, adj[N]; int ans, f[1 << N]; void init() { int m; scanf("%d%d", &n, &m); ans = 1; while (m--) { int x, y; scanf("%d%d", &x, &y); --x, --y; adj[x] |= 1 << y; ans = 2 * ans % MOD; } } int main() { init(); f[0] = 1; for (int s = 1; s < (1 << n); ++s) { if ((s ^ (s >> 1)) & 1) continue; for (int a = s; a; a = (a - 1) & s) { int b = s ^ a; int cur = f[b]; if (!cur) continue; for (int i = 0; i < n; ++i) { if (a >> i & 1) cur = ((i64)cur << __builtin_popcount(adj[i] & b)) % MOD; if (b >> i & 1) cur = cur * ((1LL << __builtin_popcount(adj[i] & a)) - 1) % MOD; } f[s] = (f[s] + cur) % MOD; } } printf("%d\n", ((i64)ans - f[(1 << n) - 1] + MOD) % MOD); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Games on DAG |
User | jiaqiyang |
Language | C++14 (GCC 5.4.1) |
Score | 1600 |
Code Size | 896 Byte |
Status | AC |
Exec Time | 519 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:39:58: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘i64 {aka long long int}’ [-Wformat=] printf("%d\n", ((i64)ans - f[(1 << n) - 1] + MOD) % MOD); ^ ./Main.cpp: In function ‘void init()’: ./Main.cpp:12:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ ./Main.cpp:16:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1600 / 1600 | ||||
Status |
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Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.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, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 1 ms | 128 KB |
0_01.txt | AC | 1 ms | 128 KB |
0_02.txt | AC | 1 ms | 128 KB |
0_03.txt | AC | 1 ms | 128 KB |
1_00.txt | AC | 1 ms | 128 KB |
1_01.txt | AC | 512 ms | 256 KB |
1_02.txt | AC | 511 ms | 256 KB |
1_03.txt | AC | 511 ms | 256 KB |
1_04.txt | AC | 519 ms | 256 KB |
1_05.txt | AC | 511 ms | 256 KB |
1_06.txt | AC | 511 ms | 256 KB |
1_07.txt | AC | 518 ms | 256 KB |
1_08.txt | AC | 510 ms | 256 KB |
1_09.txt | AC | 512 ms | 256 KB |
1_10.txt | AC | 519 ms | 256 KB |
1_11.txt | AC | 510 ms | 256 KB |
1_12.txt | AC | 512 ms | 256 KB |
1_13.txt | AC | 511 ms | 256 KB |
1_14.txt | AC | 509 ms | 256 KB |
1_15.txt | AC | 510 ms | 256 KB |
1_16.txt | AC | 511 ms | 256 KB |
1_17.txt | AC | 511 ms | 256 KB |
1_18.txt | AC | 511 ms | 256 KB |
1_19.txt | AC | 511 ms | 256 KB |
1_20.txt | AC | 511 ms | 256 KB |
1_21.txt | AC | 2 ms | 128 KB |
1_22.txt | AC | 511 ms | 256 KB |
1_23.txt | AC | 512 ms | 256 KB |
1_24.txt | AC | 161 ms | 256 KB |
1_25.txt | AC | 1 ms | 128 KB |
1_26.txt | AC | 510 ms | 256 KB |
1_27.txt | AC | 16 ms | 128 KB |
1_28.txt | AC | 519 ms | 256 KB |
1_29.txt | AC | 52 ms | 256 KB |
1_30.txt | AC | 16 ms | 128 KB |
1_31.txt | AC | 519 ms | 256 KB |
1_32.txt | AC | 52 ms | 256 KB |
1_33.txt | AC | 17 ms | 128 KB |
1_34.txt | AC | 161 ms | 256 KB |
1_35.txt | AC | 52 ms | 256 KB |