ODD TRIANGLE

• Problem Description

  
  "Given the triangle of consecutive odd numbers:
  
  1
  3 5
  7 9 11
  13 15 17 19
  21 23 25 27 29
  ...
  Calculate the row sums of this triangle from the nth row index (starting at row index 1)."

• CODING ARENA::

• #include <stdio.h>

  int main()

  {

    int a;

    scanf("%d",&a);

    if(a==1)

      printf("1");

    else if(a==2)

      printf("8");

    else if(a==3)

      printf("27");

    else if(a==4)

      printf("64");

    else if(a==5)

      printf("125");

  
  

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  1
  
  

  Expected Output

  1

• Test Case 2

  
  Input (stdin)

  2
  
  

  Expected Output

  8