第二单元作业2.30

#include<iostream>#include<cmath>using namespace std;int sroot(int i){return sqrt(i);}long sroot(long j){return sqrt(j);}double sroot(double k){return sqrt(k);}int main(){int i=49;long j=1234;double k=6.25;cout<<"sqrt(i)="<<sroot(i)<<endl;cout<<"sqrt(j)="<<sroot(j)<<endl;cout<<"sqrt(k)="<<sroot(k)<<endl;return 0;}