#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<iostream>
#include<math.h>
using namespace std;
int main(){
int a, b, N;
long long T,K;
cin >> a >> b >> N >> K;
if (a > b){
int t = a;
a = b;
b = t;
}
double S = log(a*b/2);
a = a*a;
b = b*b;
double A = log((double)a / (double)(a + b));
double B = log((double)b / (double)(a + b));
T = 1;
for (int i = 0; i < N; i++){
T *= 2;
}
while (T > 1){
T = T / 2;
if (K<=T){
S += B;
}
else{
K = K - T;
S += A;
}
}
printf("%.10f\n", S);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1828 KB |
Output is correct |
2 |
Incorrect |
0 ms |
1828 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Halted |
0 ms |
0 KB |
- |