Submission #19917

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
199172016-02-25 07:09:39ilbbke동전 (kriii4_E)C++98
0 / 100
0 ms1084 KiB
#include<stdio.h>
int main()
{
int n;
long long ans=1;
scanf("%d",&n);
if(n==1) n=0;
else n-=2;
for(int i=1; i<=n; i++) ans=ans*2%1000000007;
printf("%lld\n",ans);
return 0;
}
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