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  1. #include <stdio.h>
  2.  
  3. int main() {
  4. 	int n;
  5. 	scanf("%d",&n);
  6. 	int arr[100];
  7. 	for(i=0;i<100;i++) {
  8. 		arr[i]=n%2;
  9. 		n=n/2;
  10. 		if(n==0) break;
  11. 	}
  12. 	for(j=1;j>=0;j--) {
  13. 		printf("%d",arr[i]);
  14. 	}
  15. }
  16.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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7
compilation info 
prog.c: In function ‘main’:
prog.c:7:6: error: ‘i’ undeclared (first use in this function)
  for(i=0;i<100;i++) {
      ^
prog.c:7:6: note: each undeclared identifier is reported only once for each function it appears in
prog.c:12:6: error: ‘j’ undeclared (first use in this function)
  for(j=1;j>=0;j--) {
      ^
prog.c:6:6: warning: variable ‘arr’ set but not used [-Wunused-but-set-variable]
  int arr[100];
      ^~~
stdout
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Standard output is empty
https://ideone.com/NgPGgP
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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