Submission #20051

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
20051	2016-02-25 08:53:43	ilbbke	동전 (kriii4_E)	C++98	0 / 100	0 ms	1084 KiB

D

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#include<stdio.h>
int n,arr[255];
long long ans=1;
void back(int x,int c,int w)
{
  int i,j;
  if(c>0 && c%2==0) ans++;
  for(i=w;i<=n;i++){
    if(i+x-1>n) break;
    if(arr[i-1]) continue;
    for(j=i;j<i+x;j++){
      if(arr[j]) break;
    }
    if(j!=i+x) continue;
    for(j=i;j<i+x;j++) arr[j]=1;
    back(x,c+1,i+x);
    for(j=i;j<i+x;j++) arr[j]=0;
  }
}
int main()
{
  scanf("%d",&n);
  int i;
  for(i=1;i<=n/2;i++){
    back(i,0,1);
  }
  printf("%lld",ans);
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 95