#include<iostream> #include<string> using namespace std; int main(){ int n; cin >> n; } 加个团吧https://www.acgo.cn/team/1975894743194603520/members?teamName=%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588%25E5%2593%2588

#include<bits/stdc++.h> using namespace std; int main() { int n,m; cin>>n ; for(int i=0;i<n;i++) { m=i; for(int j=0;j<=m;j++) { cout<<(char)('a'+j); } cout<<endl; } return 0; }

#include <iostream> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=i;j++){ cout<<(char)(96+j); } cout<<endl; } return 0; }