Kiritow/OJ-Problems-Source
1
0
Fork 0
mirror of https://github.com/Kiritow/OJ-Problems-Source.git synced 2024-03-22 13:11:29 +08:00
Code Issues Projects Releases Wiki Activity

Create 1775.c

Browse Source
This commit is contained in:
Kirigaya Kazuto 2016-06-28 14:36:32 +08:00 committed by GitHub
parent ca97ee504b
commit 21ec2d09cc
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
QUSTOJ/1775.c Normal file
View File

@ -0,0 +1,18 @@
#include <stdio.h>
#include <stdlib.h>
int main()
{
int n;
scanf("%d",&n);
double ans=0;
if(n%2==1)
{
for(int k=1;k<=n;k+=2) ans+=1.0/k;
}
else
{
for(int k=2;k<=n;k+=2) ans+=1.0/k;
}
return printf("%f\n",ans),0;
}