//*
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <stdlib.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <string>
#include <numeric>
#include <functional>
#define MOD 1000000007
#define MAX 0x3f3f3f3f
#define MAX2 0x3f3f3f3f3f3f3f3fll
#define ERR 1e-10
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#pragma warning(disable:4996)
using namespace std;
typedef long long ll;
typedef long double ldb;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
ll mul_inv(ll a, ll b=MOD)
{
ll b0=b, t, q;
ll x0=0, x1=1;
if(b == 1) return 1;
while(a > 1)
{
q=a/b;
t=b, b=a%b, a=t;
t=x0, x0=x1-q*x0, x1=t;
}
if(x1 < 0) x1+=b0;
return x1;
}
ll n, m;
ll ij, iij, ijj, iijj;
ll n1, n2, m1, m2;
int main()
{
int i, j, k;
cin>>n>>m;
n%=MOD, m%=MOD;
ll ans=0;
ans+=(n+1)*(m+1)%MOD;
ans-=(m+1)*(2*n+1)%MOD*mul_inv(3)%MOD;
ans-=(n+1)*(2*m+1)%MOD*mul_inv(3)%MOD;
ans+=(2*n+1)*(2*m+1)%MOD*mul_inv(9)%MOD;
ans=(ans%MOD)*9%MOD;
ans+=MOD, ans%=MOD;
cout<<ans;
return 0;
}
//*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1720 KB |
Output is correct |
2 |
Correct |
0 ms |
1720 KB |
Output is correct |
3 |
Correct |
0 ms |
1720 KB |
Output is correct |
4 |
Correct |
0 ms |
1720 KB |
Output is correct |
5 |
Correct |
0 ms |
1720 KB |
Output is correct |
6 |
Correct |
0 ms |
1720 KB |
Output is correct |
7 |
Correct |
0 ms |
1720 KB |
Output is correct |
8 |
Correct |
0 ms |
1720 KB |
Output is correct |
9 |
Correct |
0 ms |
1720 KB |
Output is correct |
10 |
Correct |
0 ms |
1720 KB |
Output is correct |
11 |
Correct |
0 ms |
1720 KB |
Output is correct |
12 |
Correct |
0 ms |
1720 KB |
Output is correct |
13 |
Correct |
0 ms |
1720 KB |
Output is correct |
14 |
Correct |
0 ms |
1720 KB |
Output is correct |
15 |
Correct |
0 ms |
1720 KB |
Output is correct |
16 |
Correct |
0 ms |
1720 KB |
Output is correct |
17 |
Correct |
0 ms |
1720 KB |
Output is correct |
18 |
Correct |
0 ms |
1720 KB |
Output is correct |
19 |
Correct |
0 ms |
1720 KB |
Output is correct |
20 |
Correct |
0 ms |
1720 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1720 KB |
Output is correct |
2 |
Correct |
0 ms |
1720 KB |
Output is correct |
3 |
Correct |
0 ms |
1720 KB |
Output is correct |
4 |
Correct |
0 ms |
1720 KB |
Output is correct |
5 |
Correct |
0 ms |
1720 KB |
Output is correct |
6 |
Correct |
0 ms |
1720 KB |
Output is correct |
7 |
Correct |
0 ms |
1720 KB |
Output is correct |
8 |
Correct |
0 ms |
1720 KB |
Output is correct |
9 |
Correct |
0 ms |
1720 KB |
Output is correct |
10 |
Correct |
0 ms |
1720 KB |
Output is correct |
11 |
Correct |
0 ms |
1720 KB |
Output is correct |
12 |
Correct |
0 ms |
1720 KB |
Output is correct |
13 |
Correct |
0 ms |
1720 KB |
Output is correct |
14 |
Correct |
0 ms |
1720 KB |
Output is correct |
15 |
Correct |
0 ms |
1720 KB |
Output is correct |
16 |
Correct |
0 ms |
1720 KB |
Output is correct |
17 |
Correct |
0 ms |
1720 KB |
Output is correct |
18 |
Correct |
0 ms |
1720 KB |
Output is correct |
19 |
Correct |
0 ms |
1720 KB |
Output is correct |
20 |
Correct |
0 ms |
1720 KB |
Output is correct |
21 |
Correct |
0 ms |
1720 KB |
Output is correct |
22 |
Correct |
0 ms |
1720 KB |
Output is correct |
23 |
Correct |
0 ms |
1720 KB |
Output is correct |
24 |
Correct |
0 ms |
1720 KB |
Output is correct |
25 |
Correct |
0 ms |
1720 KB |
Output is correct |
26 |
Correct |
0 ms |
1720 KB |
Output is correct |
27 |
Correct |
0 ms |
1720 KB |
Output is correct |
28 |
Correct |
0 ms |
1720 KB |
Output is correct |
29 |
Correct |
0 ms |
1720 KB |
Output is correct |
30 |
Correct |
0 ms |
1720 KB |
Output is correct |
31 |
Correct |
0 ms |
1720 KB |
Output is correct |
32 |
Correct |
0 ms |
1720 KB |
Output is correct |
33 |
Correct |
0 ms |
1720 KB |
Output is correct |
34 |
Correct |
0 ms |
1720 KB |
Output is correct |
35 |
Correct |
0 ms |
1720 KB |
Output is correct |
36 |
Correct |
0 ms |
1720 KB |
Output is correct |
37 |
Correct |
0 ms |
1720 KB |
Output is correct |
38 |
Correct |
0 ms |
1720 KB |
Output is correct |
39 |
Correct |
0 ms |
1720 KB |
Output is correct |
40 |
Correct |
0 ms |
1720 KB |
Output is correct |