10
9
2015
0

[BZOJ1968] [Ahoi2005] COMMON 约数研究

喜闻乐见的良心大水题……(这种题居然放在bzoj上)

以下是代码,不用解释了吧

#include<cstdio>

int n,ans=0;
int main(){
freopen("1968.in","r",stdin);
freopen("1968.out","w",stdout);
scanf("%d",&n);
for(int i=1;i<=n;i++)ans+=n/i;
printf("%d\n",ans);
return 0;
}
Category: BZOJ | Tags: OI | Read Count: 426

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