13 lines
278 B
C++
13 lines
278 B
C++
#include <iostream>
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#include <iomanip>
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#define PI 3.1415927
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#include <cmath>
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using namespace std;
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int main(){
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double a,o;
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while(cin>>a){
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o = 4.0 / 3.0 * PI * pow(a,3);
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cout << setiosflags(ios::fixed) << setprecision(3) << o << endl;
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}
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return 0;
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} |