nuclear @ 2016-09-19 22:40:51
#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
void init(){
int n;
int ans=0;
scanf("%d",&n);
for(int i=1;i<=n;i++){
if(n>i){
ans+=i*i;
n-=i;
}else{
ans+=n*i;
break;
}
printf("%d",ans);
}
return ;
}
int main(){
init();
return 0;
}
by ghj1222 @ 2016-09-19 22:45:25
约瑟夫
by nuclear @ 2016-09-19 22:47:52
为啥
by dragon_bra @ 2016-09-20 00:19:23
。。这怎么可能是对的呢。。
by nuclear @ 2016-09-20 13:38:40
怎么不对呢
by tututu @ 2016-10-29 16:43:13
+2