Submission #9326

#TimeUsernameProblemLanguageResultExecution timeMemory
9326veckalWiring (kriii2_W)C++14
4 / 4
0 ms1088 KiB
#include<stdio.h>

long long n;

int main() {
	scanf("%lld", &n);
	if (n&1) printf("%lld\n", n/2);
	else printf("%lld\n", n-1);
	return 0;
}
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