C Source that converts Decimal to Binary

dectobin.c

#include<stdio.h>
int main(void){
  int decimal, cal, i=0, j;
  int bin[100];

  printf("Type a Decimal\n");
  scanf("%d", &decimal);
  cal = decimal;
  while(cal != 0){
    bin[i] = cal % 2;
    cal /= 2;
    i++;
  }
  printf("Binary : ");
  for(j = i-1; j > 0; j--){
      printf("%d",bin[j]);
    }

    return 0;
}