QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#84994 | #5661. Multi-Ladders | piasticOuO# | WA | 2ms | 3424kb | C++14 | 765b | 2023-03-06 21:36:27 | 2023-03-06 21:36:41 |
Judging History
answer
#include <iostream>
using namespace std;
const long long modf = 1e9 + 7;
long long T, n, k, u;
long long qc(long long x, long long y) {
long long uu = 1;
while (y) {
if (y & 1)
uu = uu * x % modf;
x = x * x % modf;
y >>= 1;
}
return uu;
}
void solve() {
cin >> n >> k >> u;
if (u <= 2) {
cout << 0;
return;
}
long long d = ((u - 2) * (u - 2) % modf + u - 1) % modf;
long long v = k * (n - 1) % modf;
long long dy = qc(d, v);
long long c;
if (k == 3) {
c = 6;
} else {
c = d * u % modf;
c = c * qc(u - 1, k - 3) % modf;
}
long long ans = c * dy % modf;
cout << ans << '\n';
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> T;
while (T--) {
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 3340kb
input:
1 2 3 3
output:
162
result:
ok single line: '162'
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3424kb
input:
20 2 3 3 1 3 3 10 3 0 10 3 2 1 21 2 1 22 0 2000 15000 2000 12000 30000 200000 1000000000 3 3 2 1000000000 3 2 3 100000000 1000000000 1000000000 10 1000000000 3 100000000 2 1000000000 100000000 1 1000000000 10 1 1000000000 100000000 1 1000 100000000 1000000000 1000000000 0 1000000000 1000000000 1 100...
output:
162 6 0000164845369 945582174 5832209 779538007 419819051 981071775 771767690 998580122 429257881 970014134 915187317 00194404537
result:
wrong answer 3rd lines differ - expected: '0', found: '0000164845369'