Submission #15733

#TimeUsernameProblemLanguageResultExecution timeMemory
15733gs14004Wiring (kriii2_W)C++14
4 / 4
0 ms1084 KiB
#include <cstdio>
#include <algorithm>
#include <cstdlib>
#include <cstring>
#include <queue>
#include <vector>
using namespace std;
typedef long long lint;

lint x;

int main(){
	scanf("%lld",&x);
	printf("%lld",(x % 2) ? (x / 2) : (x-1));
}
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