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AC代码,作为参考,其实挺水的

Posted by 994487586 at 2011-07-21 01:02:39 on Problem 2006
#include <stdio.h>
#include <math.h>

double ka;
double acid;
double res;
double temp, delta;
int m, n;

int main()
{
	scanf("%lf%lf%d%d", &ka, &acid, &m, &n);
	while(ka && acid && m && n)
	{
		delta = sqrt(ka * ka+4 * n * acid * ka * m);
        temp = (-ka + delta) / (2 * n);
        res = -log10(temp);
        printf("%.3lf\n",res);
		scanf("%lf%lf%d%d", &ka, &acid, &m, &n);
	}
	return 0;
}

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