Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 121611 Accepted Submission(s): 46373
0 0 0 1 0 1 1 0
1.00 1.41
注意:输入的时候要写%lf,否则乱码。另外,pow函数包含在math里,是平方的意思。pow(a,2)其中a为平方的数,2为次方。
#include<stdio.h>
#include<math.h>
int main(){
double a[5];
while(~scanf("%lf%lf%lf%lf",&a[0],&a[1],&a[2],&a[3])){
a[4]=pow(a[3]-a[1],2)+pow(a[2]-a[0],2);
a[4]=sqrt(a[4]);
printf("%.2f\n",a[4]);
}
return 0;
}