Submission #19783

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
19783	2016-02-25 05:36:02	Qwaz	창문 (kriii4_C)	C++98	3 / 100	0 ms	1084 KiB

C

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#include <cstdio>
typedef long long ll;
const int MOD = 1000000007;
ll modpow(ll a, ll x) {
  ll ret = 1;
  a = a % MOD;
  while (x) {
    if (x & 1) ret = ret * a % MOD;
    a = a * a % MOD;
    x >>= 1;
  }
  return ret;
}
int main() {
  ll h, w;
  scanf("%lld%lld", &h, &w);
  h %= MOD;
  w %= MOD;
  ll cntH, cntW;
  cntH = h * (h+1) % MOD * modpow(2, MOD-2) % MOD;
  cntW = w * (w+1) % MOD * modpow(2, MOD-2) % MOD;
  ll expH, expW;
 
 
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• Subtask 1: 3 / 3
• Subtask 2: 0 / 97