| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 19364 |
2016-02-24T10:42:01 Z |
sys7961 |
Σ (kriii4_P2) |
C++14 |
|
7 ms |
1084 KB |
#include<stdio.h>
const long long M = 1000000007;
long long pow(long long n, long long b) {
if (b == 0) {
return 1;
}
long long temp = pow(n, b / 2);
if (b % 2 == 1) {
return temp*temp%M*n%M;
}
return temp*temp%M;
}
int main() {
int m;
scanf("%d", &m);
long long ans = 0;
for (int i = 0; i < m; i++) {
long long n, s;
scanf("%lld%lld", &n, &s);
ans += s*pow(n, M - 2);
ans %= M;
}
printf("%lld", ans);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 2 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 3 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 4 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 5 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 6 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 7 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 8 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 9 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 10 |
Correct |
0 ms |
1084 KB |
Output is correct |
| 11 |
Correct |
6 ms |
1084 KB |
Output is correct |
| 12 |
Correct |
6 ms |
1084 KB |
Output is correct |
| 13 |
Correct |
5 ms |
1084 KB |
Output is correct |
| 14 |
Correct |
7 ms |
1084 KB |
Output is correct |
| 15 |
Correct |
7 ms |
1084 KB |
Output is correct |
| 16 |
Correct |
6 ms |
1084 KB |
Output is correct |
| 17 |
Correct |
7 ms |
1084 KB |
Output is correct |
| 18 |
Correct |
6 ms |
1084 KB |
Output is correct |
| 19 |
Correct |
5 ms |
1084 KB |
Output is correct |
| 20 |
Correct |
6 ms |
1084 KB |
Output is correct |
