Submission #9422

#TimeUsernameProblemLanguageResultExecution timeMemory
9422pichuliaWiring (kriii2_W)C++98
4 / 4
0 ms1088 KiB
#include<stdio.h>
long long int n;
int main()
{
  scanf("%lld",&n);
  if(n%2)printf("%lld\n",n/2);
  else printf("%lld\n",n-1);
}
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