nealzane.txt

C++经典算法.rar很经典的

Problem Id:1045  User Id:nealzane 
Memory:32K  Time:10MS 
Language:C  Result:Accepted

Source 
#include <stdio.h> 

float squareRoot(float s) { 
    static float d, x; 
    for (x = s / 2.0f, d = 1.0f; d > 1.0e-5; d = (s - x * x) / 2.0f / x, x += d, 
        (d < 0) ? d = - d : d); 
    return x; 
} 

int main (void) { 
    int n; 
    float vs, r, c, omega; 

    scanf("%f %f %f %d\n", &vs, &r, &c, &n); 
    while (n --) { 
        scanf("%f\n", &omega); 
        omega *= r * c; 
        printf("%0.3f\n", omega * vs / squareRoot((omega * omega) + 1.0f) ); 
    } 
    return 0; 
}