Submission #19972

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
199722016-02-25 07:59:29qataro동전 (kriii4_E)C++98
0 / 100
0 ms1576 KiB
#include <cstdio>
#include <vector>
using namespace std;
int main()
{
int n;
scanf("%d", &n);
vector<long long> winCnt(n + 3);
winCnt[1] = 1;
winCnt[2] = 1;
///winCnt[3] = 2;
for(int i = 3; i <= n; i++)
winCnt[i] = winCnt[i - 1] + winCnt[i-1]/2 + (i-2)/2 + i%2;
printf("%lld", winCnt[n] % 1000000007);
return 0;
}
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