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  1. #include <stdio.h>
  2. int main(){
  3. int a,data[32],i=0;
  4. scanf("%d",&a);
  5. for(i=0;a>0;i++){
  6. data[i]=a%2;
  7. a=a/2;
  8. }
  9. for(i=i-1;i>=0;i--){
  10. printf("%d",data[i]);
  11. }return 0;
  12.  
  13. }
  14.  
Success #stdin #stdout 0.01s 5296KB
stdin
4
stdout
100