3n+1 Problem "c programming"?

Can any one Please tell me what is wrong with this code


it keeps giveing me wrong answer "zero"





//////////////////////////////////////...


#include "stdio.h"





int proc(int x)


{


int counter=0;


while(x!=1)


{


if(x%2==0)


{


x=x/2;


}


else if(x%2!=0)


{


x=(3*x)+1;


}


counter++;


}


return counter;


}





int main()


{


int i;


int j;


int c=0;


int num;


int max=0;


FILE *in=fopen("pro.in","r");


FILE *out=fopen("pro.out","w");


fscanf(in,"%d",%26amp;i);


fscanf(in,"%d",%26amp;j);


for(num=i;num%26lt;=j;num++)


{





c=proc(num);


if(max%26lt;c)


{


max==c;


}


}


fprintf(out,"%d",max);


return 0;


}





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3n+1 Problem "c programming"?
first solution is don't use an int data type because it will not return a number with decimal places, instead use a float data type where it can return a number with decimal places. this is only a guess because i didn't get what you wanted as an output