Calculate the Nth term | HackerRank

Problem Link : Calculate the Nth term

Solution :
      Develop by Samsus Salehin Sabbir 

1. #include <stdio.h>
2. #include <string.h>
3. #include <math.h>
4. #include <stdlib.h>
5. //Complete the following function.
6. 
   
7. int find_nth_term(int n, int a, int b, int c) {
8.   //Write your code here.
9.     int first =a;
10.     int seccond = b;
11.     int third = c;
12.     int i,sum =0;
13.     for(i=4;i<=n;i++){
14.         sum = third + seccond + first;
15.         first = seccond;
16.         seccond = third;
17.         third = sum;
18.     }
19.     return sum;
20. }
21. 
    
22. int main() {
23.     int n, a, b, c;
24.   
25.     scanf("%d %d %d %d", &n, &a, &b, &c);
26.     int ans = find_nth_term(n, a, b, c);
27.  
28.     printf("%d\n", ans); 
29.     return 0;
30. }