平方和

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2024huojuyi LV 6 @ 2024-7-28 15:09:39

#include using namespace std; int main() { int n,x=0; long long y=0; cin>>n; while (x<=n) { y+=x*x; x+=1; } cout<<y; return 0; }
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2023chenzehao LV 5 @ 2023-7-27 16:13:50

#include using namespace std; int main() { long long a; int n; a=0; scanf("%d",&n); for(int m=1;m<=n;++m) a+=m*m; printf("%d",a); return 0; }
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2023zhangzhuoran LV 6 @ 2023-7-27 16:07:46

#include using namespace std; int main() { long long a; int n; a=0; cin>>n; for(int i=1;i<=n;i++) a+=i*i; cout<<a<<endl; return 0; }