| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 19668 |
2016-02-25T04:24:09 Z |
xdoju |
비트 (kriii4_Q) |
C++14 |
|
0 ms |
1088 KB |
#include <cstdio>
using namespace std;
const long long MOD = 1000000007ll;
long long modpow(long long r, long long n) {
long long ret = 1;
while (n > 0) {
if (n % 2 > 0) {
ret = (ret * r) % MOD;
}
r = (r * r) % MOD;
n /= 2;
}
return ret;
}
long long modinv(long long n) {
return modpow(n, MOD - 2);
}
long long coff[300], add[300];
long long ans[300];
void proc() {
int n, k;
scanf("%d %d", &n, &k);
coff[1] = ((n - 1) * modinv(n)) % MOD;
add[1] = 1;
for (int i = 2; i < n; ++i) {
long long t = (((coff[i - 1] * i) % MOD) * modinv(n)) % MOD;
long long u = (1 - t + MOD) % MOD;
long long v = ((n - i) * modinv(n)) % MOD;
coff[i] = (v * modinv(u)) % MOD;
long long w = (1 + ((((i * modinv(n)) % MOD) * add[i - 1]) % MOD)) % MOD;
add[i] = (w * modinv(u)) % MOD;
}
ans[n] = ((add[n - 1] + 1) * modinv((1 - coff[n - 1] + MOD) % MOD)) % MOD;
for (int i = n - 1; i >= 1; --i) {
ans[i] = (((ans[i + 1] * coff[i]) % MOD) + add[i]) % MOD;
}
for (int i = 1; i <= n; ++i) {
printf("%lld\n", ans[i]);
}
}
int main() {
proc();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 2 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 3 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 4 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 5 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 6 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 7 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 8 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 9 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 10 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 11 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 12 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 13 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 14 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 15 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 16 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 17 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 18 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 19 |
Correct |
0 ms |
1088 KB |
Output is correct |
| 20 |
Correct |
0 ms |
1088 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
1088 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
