C++ Exercises: Calculate Simple Interest
C++ Basic: Exercise-54 with Solution
Write a C++ program to enter P, T, R and calculate Simple Interest.
Sample Solution:
C++ Code :
#include<iostream>
using namespace std;
int main()
{
int p,r,t,i;
cout << "\n\n Calculate the Simple Interest :\n";
cout << " -----------------------------------\n";
cout<<" Input the Principle: ";
cin>>p;
cout<<" Input the Rate of Interest: ";
cin>>r;
cout<<" Input the Time: ";
cin>>t;
i=(p*r*t)/100;
cout<<" The Simple interest for the amount "<<p<<" for "<<t<<" years @ "<<r<<" % is: "<<i;
cout << endl;
return 0;
}
Sample Output:
Calculate the Simple Interest : ----------------------------------- Input the Principle: 20000 Input the Rate of Interest: 10 Input the Time: 1.5 The Simple interest for the amount 20000 for 1 years @ 10 % is: 2000
Flowchart:

C++ Code Editor:
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Previous: Write a program in C++ to calculate area of an equilateral triangle.
Next: Write a program in C++ to enter P, T, R and calculate Compound Interest.
What is the difficulty level of this exercise?
C++ Programming: Tips of the Day
Why is there no std::stou?
The most pat answer would be that the C library has no corresponding "strtou", and the C++11 string functions are all just thinly veiled wrappers around the C library functions: The std::sto* functions mirror strto*, and the std::to_string functions use sprintf.
Ref: https://bit.ly/3wtz2qA
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