UVa 10499 - The Land of Justice

传送门UVa 10499 - The Land of Justice

题意是输入把一个球切成的块数, 求出表面积增加的百分比.

切成n时, 增加

化简即可.

注意n=1时的处理

PS: Actually the clever mathematicians were very much interested to establish their own business.

我怎么觉得作者在讽刺数学家...

#include <cstdio>#include <cmath>using namespace std;int main(){    double n;    while (scanf("%lf", &n) && n >= 0)    {        if (n == 1)            printf("0%%\n");        else            printf("%.f%%\n", 25 * n);    }    return 0;}