题解 | #牛牛学数列4#
牛牛学数列4
https://ac.nowcoder.com/acm/problem/22159
using namespace std;
#define int long long
#define endl '\n'
signed main(){
std::ios::sync_with_stdio(false); cin.tie(0);cout.tie(0);
int n;cin>>n;
int sum=0,s=0;//不写s=0结果会出错
for(int i=1;i<=n;i++){
s=s+i;
sum=sum+s;
cout<<s<<" "<<sum<<endl;
}
cout<<sum<<endl;
return 0;
}
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