【CodeForces】[624A]Save Luke

又是一个一句话AC题目

#include<stdio.h>
int main() {
    int d,l,v1,v2;
    while(scanf("%d %d %d %d",&d,&l,&v1,&v2)!=EOF)
        printf("%lf
",(double)(l-d)/(v1+v2));
    return 0;
}

题目地址:【CodeForces】[624A]Save Luke