Submission #1500409
Source Code Expand
#include <bits/stdc++.h> #define rep(n) for (int I = 0; (I) < (n); ++(I) ) #define repeat(i, n) for( int i = 0; (i) < (n); ++(i) ) #define repeat_to(i, n) for( int i = 0; (i) <= (n); ++(i) ) #define repeat_from(i, m, n) for( int i = (m); (i) < (n); ++(i) ) #define repeat_from_to(i, m, n) for( int i = (m); (i) <= (n); ++(i) ) #define repeat_from_reverse(i, m, n) for( int i = (n) - 1; (i) >= (m); --(i) ) #define dump(x) cout << " " << #x << "=" << x #define vdump(v) for(size_t t=0; t<v.size(); ++t){cout << " " << #v << "[" << t << "]=" << v[t];} cout << endl using namespace std; using lint = long long; using ld = long double; // べき乗の剰余 lint modpow(lint x, lint y, lint m) { if (y == 0) return 1; lint res = modpow(x, y / 2, m); return res * res % m * (y & 1 ? x : 1) % m; } int main(void) { int n; cin >> n; vector<int> a(n); repeat(i, n) cin >> a[i]; if(a[0] != 0) { cout << 0 << endl; return 0; } sort(a.begin(), a.end()); if(a[1] == 0) { cout << 0 << endl; return 0; } // d[i] = j ... 頂点からの距離がiであるような頂点がj個 int m = a[n-1]; // max distance vector<int> d(m+1); repeat_from_to(i, 0, m) { auto l = lower_bound(a.begin(), a.end(), i); auto u = upper_bound(a.begin(), a.end(), i); d[i] = distance(l, u); if (d[i] == 0) { cout << 0 << endl; return 0; } } const int MOD = 1e9 + 7; lint ans = 1; repeat_from_to(i, 0, m) { lint y = d[i] * (d[i] - 1) / 2; ans *= modpow(2, y, MOD); ans %= MOD; } repeat_from_to(i, 0, m-1) { lint x = modpow(2, d[i], MOD) - 1; x %= MOD; ans *= modpow(x, d[i+1], MOD); ans %= MOD; } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - 最短路問題 |
User | maphylageo |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1854 Byte |
Status | WA |
Exec Time | 51 ms |
Memory | 1024 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 100 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt, test_37.txt, test_38.txt, test_39.txt, test_40.txt, test_41.txt, test_42.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |
sample_04.txt | AC | 1 ms | 256 KB |
test_01.txt | AC | 1 ms | 256 KB |
test_02.txt | AC | 1 ms | 256 KB |
test_03.txt | AC | 1 ms | 256 KB |
test_04.txt | AC | 1 ms | 256 KB |
test_05.txt | AC | 1 ms | 256 KB |
test_06.txt | AC | 1 ms | 256 KB |
test_07.txt | AC | 1 ms | 256 KB |
test_08.txt | AC | 1 ms | 256 KB |
test_09.txt | AC | 1 ms | 256 KB |
test_10.txt | AC | 1 ms | 256 KB |
test_11.txt | WA | 18 ms | 640 KB |
test_12.txt | WA | 18 ms | 640 KB |
test_13.txt | WA | 18 ms | 640 KB |
test_14.txt | AC | 18 ms | 640 KB |
test_15.txt | AC | 18 ms | 640 KB |
test_16.txt | AC | 18 ms | 640 KB |
test_17.txt | AC | 19 ms | 640 KB |
test_18.txt | AC | 19 ms | 640 KB |
test_19.txt | AC | 19 ms | 640 KB |
test_20.txt | AC | 21 ms | 640 KB |
test_21.txt | AC | 22 ms | 640 KB |
test_22.txt | AC | 23 ms | 640 KB |
test_23.txt | AC | 27 ms | 640 KB |
test_24.txt | AC | 28 ms | 640 KB |
test_25.txt | AC | 43 ms | 768 KB |
test_26.txt | AC | 51 ms | 1024 KB |
test_27.txt | AC | 51 ms | 1024 KB |
test_28.txt | AC | 44 ms | 768 KB |
test_29.txt | AC | 28 ms | 640 KB |
test_30.txt | AC | 27 ms | 640 KB |
test_31.txt | AC | 1 ms | 256 KB |
test_32.txt | AC | 1 ms | 256 KB |
test_33.txt | AC | 1 ms | 256 KB |
test_34.txt | WA | 1 ms | 256 KB |
test_35.txt | AC | 1 ms | 256 KB |
test_36.txt | AC | 1 ms | 256 KB |
test_37.txt | AC | 1 ms | 256 KB |
test_38.txt | AC | 1 ms | 256 KB |
test_39.txt | AC | 1 ms | 256 KB |
test_40.txt | AC | 1 ms | 256 KB |
test_41.txt | AC | 1 ms | 256 KB |
test_42.txt | AC | 1 ms | 256 KB |