View Code of Problem 3497

#include<stdio.h>
int main()
{
    int i,a,b,c,s[100];
    while(scanf("%d%d%d",&a,&b,&c)!=EOF)
    {
        s[0]=a;
        s[1]=b;
        s[2]=c;
        for(i=3;i<=99;i++)
        {
            s[i]=s[i-1]+s[i-2]+s[i-3];
        }
        printf("%d",s[99]);
    }
    return 0;
}