QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #571517 | #9353. Interesting Permutation | real_sigma_team# | AC ✓ | 93ms | 4040kb | C++17 | 921b | 2024-09-17 23:58:41 | 2024-09-17 23:58:41 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
cout << fixed << setprecision(5);
int tests;
cin >> tests;
while (tests--) {
int n;
cin >> n;
vector<int> h(n);
for (auto& i : h) cin >> i;
bool ok = h[0] == 0 && h[n - 1] == n - 1;
for (int i = 0; i + 1 < n; ++i) {
ok &= h[i] <= h[i + 1];
}
for (int i = 0; i < n; ++i) {
ok &= h[i] >= i;
}
if (!ok) {
cout << "0\n";
continue;
}
int ans = 1;
int mod = 1e9 + 7;
for (int i = 1; i < n; ++i) {
if (h[i] != h[i - 1]) {
ans = ans * 2ll % mod;
} else {
ans = 1ll * ans * (h[i] + 1 - i) % mod;
}
}
cout << ans << '\n';
}
}
这程序好像有点Bug，我给组数据试试？
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3636kb
input:
3 3 0 2 2 3 0 1 2 3 0 2 3
output:
2 4 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 69ms
memory: 4040kb
input:
10039 14 5 6 7 8 9 10 11 12 13 13 13 13 13 13 14 0 5 6 7 8 9 10 11 12 13 14 14 14 14 1 1 14 0 5 4 8 9 10 11 12 13 13 13 13 13 13 45 0 1 1 2 2 3 5 5 6 6 8 9 11 13 15 17 18 18 20 22 22 24 26 26 26 26 27 27 27 28 30 32 32 33 34 34 34 36 36 38 38 38 39 39 44 24 0 2 3 5 7 9 9 10 11 12 13 14 14 14 14 15 1...
output:
0 0 0 0 0 0 24576 0 0 0 0 0 658159182 0 805306368 8 572589350 12288 2 0 981283070 0 0 2 0 0 0 0 4423680 0 0 14155776 16 0 768 0 0 0 855189487 0 2 0 0 0 0 2 0 2 797370259 0 0 0 0 4 0 0 0 301989888 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 192 0 0 12288 0 0 2 8 0 0 495514526 0 0 955131071 768 0 0 147456 0 0...
result:
ok 10039 lines
Test #3:
score: 0
Accepted
time: 93ms
memory: 3996kb
input:
20 100000 0 1 2 3 5 6 7 9 10 10 12 12 12 13 14 15 17 17 18 19 21 22 24 26 28 28 28 28 29 31 32 34 35 36 38 39 39 39 41 41 42 44 45 47 48 49 51 53 54 56 58 58 58 60 62 62 64 64 64 66 66 66 66 68 70 70 71 72 72 74 74 75 76 77 77 78 80 80 82 82 84 85 86 86 88 88 89 90 91 91 93 93 95 97 98 100 101 103 1...
output:
202795881 940225306 406525679 536765675 729062616 366047380 66289678 199278830 570456350 993317415 17778389 674797620 787821942 841428534 632185280 579006079 822641126 664256526 482813708 821188194
result:
ok 20 lines
Test #4:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
1 14 5 6 7 8 9 10 11 12 13 13 13 13 13 13
output:
0
result:
ok single line: '0'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3640kb
input:
1 14 0 5 6 7 8 9 10 11 12 13 14 14 14 14
output:
0
result:
ok single line: '0'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3572kb
input:
1 1 1
output:
0
result:
ok single line: '0'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3636kb
input:
1 14 0 5 4 8 9 10 11 12 13 13 13 13 13 13
output:
0
result:
ok single line: '0'
Extra Test:
score: 0
Extra Test Passed