Submission #8402

#TimeUsernameProblemLanguageResultExecution timeMemory
8402aintaWiring (kriii2_W)C++98
4 / 4
0 ms1088 KiB
#include<stdio.h>
long long n;
int main()
{
	scanf("%lld", &n);
	if (n % 2)n /= 2;
	else n--;
	printf("%lld\n", n);
}
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