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Submission #19269

# Submission time Handle Problem Language Result Execution time Memory
19269 2016-02-23T15:58:29 Z kaTkaHr 제비 (kriii4_W) C++14
6 / 100
 20 ms 142176 KB 
#include <stdio.h>
#include<vector>
#include <algorithm>
#include <map>

using namespace std;

typedef long long ll;

const int MX = 3005, MM = 1000000007;

ll pw(ll A, ll B){
    ll R = 1;
    while(B){
        if( B&1 ) R = R * A % MM;
        A = A * A % MM; B /= 2;
    }
    return R;
}


ll rv(ll A){ return pw(A, MM-2); }

struct frac{
    ll A, B;
		frac(ll A):A(A), B(1){}
    frac(ll a, ll b){
        A = (a%MM+MM) % MM;
        B = (b%MM+MM) % MM;
    }
    frac(){A = 0, B = 1;}
    frac operator+ (const frac &l)const{
        return frac((A * l.B + B * l.A) % MM, B * l.B % MM);
    }
    frac operator*(const frac &l)const{
        return frac(A*l.A % MM, B*l.B % MM);
    }
    frac operator/(const frac &l)const{
        return frac(A*l.B % MM, B*l.A % MM);
    }
    frac operator- (const frac &l)const{
        return frac((A*l.B - B*l.A%MM + MM) % MM, B*l.B % MM);
    }
    ll v(){ return A * rv(B) % MM; }
};

frac pw(frac A, ll B){
    frac R = 1;
    while(B){
        if( B&1 ) R = R * A;
        A = A * A; B /= 2;
    }
    return R;
}

frac P[MX][MX];

int main()
{
	int R, G, B, K, T;
	int TT;
	scanf("%d", &TT);
	for(int tt = 1; tt <= TT; tt++){
		scanf("%d%d%d%d", &R, &G, &B, &K);
		frac ans = frac(G * K, B) + (frac(1, 1) - pw(frac(B, 1+B), K)) * R + K;
		printf("%lld\n", ans.v());
	}
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 142176 KB Output is correct
2 Correct 4 ms 142176 KB Output is correct
3 Correct 9 ms 142176 KB Output is correct
4 Correct 20 ms 142176 KB Output is correct
5 Correct 14 ms 142176 KB Output is correct
6 Correct 9 ms 142176 KB Output is correct
7 Correct 16 ms 142176 KB Output is correct
8 Correct 12 ms 142176 KB Output is correct
9 Correct 12 ms 142176 KB Output is correct
10 Correct 16 ms 142176 KB Output is correct

Subtask #2
0.0 / 94.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 142176 KB Output isn't correct
2 Halted 0 ms 0 KB -