Anonymous
public cpp v1 · immutable#include <iostream>#include <math.h>#include <stdio.h>using namespace std;int main(){long double a,b,c;cin >> a >> b;c=3.141592654*(a*a-b*b/4);cout << c << "\n";printf("%f",c);system("PAUSE");}#include <iostream>#include <math.h>#include <stdio.h>using namespace std;int main(){long double a,b,c;cin >> a >> b;c=3.141592654*(a*a-b*b/4);cout << c << "\n";printf("%f",c);system("PAUSE");}