| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 19798 |
2016-02-25T05:44:09 Z |
mitslll |
창문 (kriii4_C) |
C++ |
|
0 ms |
1716 KB |
#include<cstdio>
#include<iostream>
#include<string>
#include<vector>
using namespace std;
typedef unsigned long long ull;
ull gcd(ull a, ull b){
return ( a % b == 0 ) ? b : gcd(b, a % b);
}
const ull mod = 1000000007;
struct Solution { ull gcd, x, y;
Solution(ull gcd, ull x, ull y)
:gcd(gcd), x(x), y(y)
{
}
};
Solution extendedEuclid(ull a, ull b) {
ull q = a / b, r = a % b;
if(r == 0) return Solution(b, 0, 1);
Solution s = extendedEuclid(b, r);
// now, we have
// s.gcd = s.x * b + s.y * r
// = s.x * b + s.y * (a - q * b)
// = s.y * a + (s.x - q * s.y) * b
return Solution(s.gcd, s.y, s.x - q * s.y);
}
int main(){
ull h, w;
cin >> h>> w;
ull bot = 1;
ull g;
h = h+2;
w= w+2;
g= gcd(h, bot);
bot /= g;
h /= g;
g = gcd(w, bot);
w/= g;
bot /= g;
h %= mod;
w %= mod;
ull top = ( h * w ) % mod;
ull rev = 1;
if(bot != 1){
Solution sol = extendedEuclid(bot, mod);
rev = sol.x + mod;
}
cout << ( top * rev ) % mod << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 2 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 3 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 4 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 5 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 6 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 7 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 8 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 9 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 10 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 11 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 12 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 13 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 14 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 15 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 16 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 17 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 18 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 19 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 20 |
Correct |
0 ms |
1716 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 2 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 3 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 4 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 5 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 6 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 7 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 8 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 9 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 10 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 11 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 12 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 13 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 14 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 15 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 16 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 17 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 18 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 19 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 20 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 21 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 22 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 23 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 24 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 25 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 26 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 27 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 28 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 29 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 30 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 31 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 32 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 33 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 34 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 35 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 36 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 37 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 38 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 39 |
Correct |
0 ms |
1716 KB |
Output is correct |
| 40 |
Correct |
0 ms |
1716 KB |
Output is correct |
