Submission #379414

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
379414	2021-03-18 07:39:52	benedict0724	제비 (kriii4_W)	C++17	100 / 100	3 ms	492 KiB

W

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#include <iostream>
using namespace std;
typedef long long ll;
const ll mod = 1000000007;
ll pow(ll x, ll y){
    int k = 0; ll temp = x, ans = 1;
    while((1LL << k) <= y)
    {
        if((1LL << k) & y){
            ans *= temp;
            ans %= mod;
        }
        temp *= temp;
        temp %= mod;
        k++;
    }
    return ans;
}
ll inv(ll x) { return pow(x, mod - 2); }
void solve()
{
    ll R, G, B, K; cin >> R >> G >> B >> K;
    ll ans = (B+G)*K; ans %= mod;
    ans *= inv(B); ans %= mod;
    ll ans2 = R * inv(pow(1+B, K)); ans2 %= mod;
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 94 / 94