ZOJ1137

//a、b如果有一个为偶数则可以不走斜线，若同时为奇则必走一斜线#include<stdio.h>#include<stdlib.h>int main(){int n,i,a,b;    double *p;scanf("%d",&n);p = (double *)malloc(sizeof(double)*n);for(i = 0;i<n;i++){scanf("%d %d",&a,&b);if(a%2 == 0||b%2 == 0) p[i] = a*b;else p[i] = a*b - 1 +sqrt(2);         }    for(i = 0;i<n;i++)    {    printf("Scenario #%d:\n%.2f\n\n",i+1,p[i]);    }return 0;}