1117

Run ID	Author	Problem	Lang	Verdict	Score	Time	Memory	Code Length	Submit Time
1117	王冯俊	编程求n!=123...n	C++	Wrong Answer	0	0 MS	252 KB	146	2019-10-02 11:36:30

#include<iostream> int main(){ int i=1,sum=0,n; scanf("%d",&n); while(i<=n){ sum=sum+i; i=i+2; } printf("%d",sum); return 0; }