C++ Exercises: Convert a given year to century

C++ Date: Exercise-3 with Solution

Write a C++ program to convert a given year to century.

Note: A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred. Century is sometimes abbreviated as c.

Sample Solution-1:

C++ Code:

#include <iostream>
#include <cmath>
 
using namespace std;

double year_to_century(int y) {

        return floor((y-1)/100+1);
    }

int main(){
   int y;
   y = 1900;
   cout << "Year: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 1999;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2000;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2010;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2020;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);      
}

Sample Output:

Year: 1900,  Century of the year: 19
Year: 1999,  Century of the year: 20
Year: 2000,  Century of the year: 20
Year: 2010,  Century of the year: 21
Year: 2020,  Century of the year: 21

Flowchart:

Sample Solution-2:

C++ Code:

#include <iostream>

using namespace std;
double year_to_century(int y) {

        return (y - 1) / 100 + 1;
    }

int main()
{
   int y;
   y = 1900;
   cout << "Year: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 1999;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2000;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2010;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);
   y = 2020;
   cout << "\nYear: " << y << ",  Century of the year: "<<year_to_century(y);      
}

Sample Output:

Year: 1900,  Century of the year: 19
Year: 1999,  Century of the year: 20
Year: 2000,  Century of the year: 20
Year: 2010,  Century of the year: 21
Year: 2020,  Century of the year: 21

Flowchart:

C++ Code Editor:

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