General
 
 
# Author Problem Lang Verdict Time Memory Sent Judged  
55478830 Practice:
McDic
1182A - 40 GNU C++17 Accepted 30 ms 0 KB 2019-06-12 06:12:42 2019-06-12 06:12:42
 
 
→ Source
#include <stdio.h>
int main(void){
	int n; scanf("%d", &n);
	if(n%2==0) printf("%d", 1<<(n/2));
	else printf("0");
	return 0;
}
 
 
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