// #includeiostreamusing namespace std;int main() {const float PI = 3.141;// 3.141 is floating point constant while PI is a constant float.

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// 
#include<iostream>
using namespace std;
int main() {
   const float PI = 3.141;  // 3.141 is floating point constant while PI is a constant float.
   cout << PI;
   return 0;
}