Code
A program to check whether the input is a triangular number or not
The numbers formed by the sum of the natural numbers are the triangular numbers. For example, 1, 3=1+2, 6=1+2+3, 10=1+2+3+4
Rate
// a program to check whether the input number is traingular or not
#include <stdio.h>
int main(){
int num, i, sum=0, flag=0;
printf("Enter the number\n");
scanf("%d",&num);
for(i=0; i<=num; i++){
sum += i;
if(sum == num){
printf("%d is a triangular number\n",num);
flag = 1;
break;
}
}
if(flag == 0){
printf("%d is not a triangular number\n",num);
}
return 0;
}
Add comment:
Total 0 comments