提交时间:2024-03-17 16:50:57

运行 ID: 37458

#include <iostream> using namespace std; int main(){ int q; string s3,s; cin >>q>>s3; s =s3; int t,a,b; string st; while(q--){ cin>>t; if(t==1){ cin >>st; s=s+st; cout <<s<<endl; } if(t==2){ cin >>a>>b; string temp = s.substr(a,b); s =temp; cout <<s<<endl; } if(t==3){ cin >>a>>st; s.insert(a,st); cout <<s<<endl; } if(t==4){ cin >>st; int a = s.find(st); cout <<a<<endl; } } }