Question:Sum of 1 + 2 + …. + n series in c programming language 

Answer 
#include<stdio.h>
int main(){

    int n,i;
    int sum=0;

    printf("Enter the n i.e. max values of series: ");
    scanf("%d",&n);

    sum = (n * (n + 1)) / 2;

    printf("Sum of the series: ");

    for(i =1;i <= n;i++){
         if (i!=n)
             printf("%d + ",i);
         else
             printf("%d = %d ",i,sum);
         }
   
    return 0;
}
Sample output: Enter the n i.e. max values of series: 5 Sum of the series: 1 + 2 + 3 + 4 + 5 = 15 

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Sum of 1 + 2 + …. + n series in c programming language
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