Continuous Sum

• Problem Description

  
  Chintu is confusing himself with series of numbers. He has to find the sum of the following series. Your task is to write a code to find the sum of the following series
  1+(1+2)+ (1+2+3)+ (1+2+3+4)++n
  Input:
  Input should contain the value of the limit n
  Output:
  It should print the Sum of series upto n limit

• Test Case 1

  
  Input (stdin)

  2
  
  

  Expected Output

  Sum of series=4

• Test Case 2

  
  Input (stdin)

  4
  
  

  Expected Output

  Sum of series=20

Solution

#include <stdio.h>

int main(){

int n,sum,sum1=0,i,j;

scanf("%d",&n);

for(i=1;i<=n;i++){

sum=0;

for(j=1;j<=i;j++)

sum=sum+j;

sum1=sum1+sum;

}

printf("Sum of series=%d",sum1);

return 0;

}