- 龙凤苑中学C班4.18
]数列求和
-
lfy18
LV 3
@
2024-4-19 17:01:51
#include<bits/stdc++.h> using namespace std; int n,sum=0; int main(){
cin>>n;
for(int i=1;i<=n;i++){
sum+=i;
}
cout<<sum;
return 0; }
0 comments
No comments so far...