Submission #1884179
Source Code Expand
#include "bits/stdc++.h" using namespace std; typedef long long ll; #define FOR(i,a,b) for(int (i)=(a);i<(int)(b);i++) #define rep(i,n) FOR(i,0,n) #define ALL(x) (x).begin(),(x).end() #define FASTIO() cin.tie(0),ios::sync_with_stdio(0); const int mod = (int)1e9 + 7; ll pows[114514]; // 2^i % mod int main() { FASTIO(); int n; cin >> n; vector<int> a(n); for (int& i : a) cin >> i; bool ng = false; rep(i, n) ng |= (i == 0 && a[i] != 0) || (i != 0 && a[i] == 0); if (ng) { cout << 0 << endl; return 0; } sort(ALL(a)); // [0,n] pows[0] = 1; rep(i, n) pows[i + 1] = (2 * pows[i]) % mod; static int k[114514] = {0}; k[0] = 1; ll ans = 1; FOR(i, 1, n) { ll x = pows[k[a[i] - 1]] - 1; ll y = pows[k[a[i]]]; x %= mod; y %= mod; ans *= x * y; ans %= mod; k[a[i]]++; } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - 最短路問題 |
User | fushime2 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 982 Byte |
Status | WA |
Exec Time | 17 ms |
Memory | 1792 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 100 | ||||||
Status |
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|
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 | WA | 1 ms | 256 KB |
test_07.txt | WA | 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 | AC | 9 ms | 1408 KB |
test_12.txt | WA | 10 ms | 1408 KB |
test_13.txt | WA | 10 ms | 1408 KB |
test_14.txt | WA | 10 ms | 1408 KB |
test_15.txt | WA | 10 ms | 1408 KB |
test_16.txt | WA | 10 ms | 1408 KB |
test_17.txt | WA | 11 ms | 1408 KB |
test_18.txt | WA | 11 ms | 1408 KB |
test_19.txt | WA | 11 ms | 1408 KB |
test_20.txt | WA | 12 ms | 1408 KB |
test_21.txt | WA | 12 ms | 1408 KB |
test_22.txt | WA | 13 ms | 1408 KB |
test_23.txt | WA | 14 ms | 1408 KB |
test_24.txt | WA | 14 ms | 1408 KB |
test_25.txt | AC | 17 ms | 1536 KB |
test_26.txt | AC | 17 ms | 1792 KB |
test_27.txt | AC | 17 ms | 1792 KB |
test_28.txt | AC | 17 ms | 1536 KB |
test_29.txt | AC | 9 ms | 640 KB |
test_30.txt | AC | 8 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 | AC | 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 |