Question

How calculate the sum of numbers from 1 to 100 in C++

Answer 1

#include <iostream>

int main() {
   int sum = 0;

   for (int i = 1; i <= 100; i++) {
        sum += i;
   }
   
   std::cout << sum;
}




/*
run:
 
5050
 
*/

 

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Answer 2

#include <iostream>

int main() {
   int i = 1, sum = 0;
   
   while (i <= 100) {
      sum += i;
      i++;
   }
   
   std::cout << sum;
}




/*
run:
 
5050
 
*/

 

70+ SQL courses for beginners and professionals