Submission #299859

#	Time	Username	Problem	Language	Result	Execution time	Memory
299859		mohamedsobhi777	Collider (IZhO11_collider)	C++14	100 / 100	386 ms	28944 KiB

collider

#include<bits/stdc++.h>
#include<ext/rope>
/*
#pragma GCC optimize("-Ofast")
//#pragma GCC optimize("trapv")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.2,popcnt,abm,mmx,avx2,tune=native")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-funroll-loops")*/

#define I inline void 
#define S struct 
#define vi vector<int> 
#define vii vector<pair<int,int>>
#define pii pair<int,int>
#define pll pair<ll,ll>

using namespace std ; 
using namespace __gnu_cxx ;
using ll = long long ; 
using ld = long double ; 

const int N = 5e5 + 7 , mod = 1e9 + 7 ; 
const int inf = N ; 
// How interesting!

int n , m ; 
string s ;

int main(){
        ios_base::sync_with_stdio(0) ; 
        cin.tie(0) ;

        cin >> n >> m; 

        rope<int> rp (n , 0) ;
        cin >> s ; 
        for(int i = 0 ;i < n;i++){
                rp.mutable_reference_at(i) = s[i] - 'a' ; 
        }

        for(int i = 0 ;i < m; i ++){
                char a ; 
                int b , c; 
                cin >> a ; 
                if(a == 'a'){
                        cin >> b >> c ;
                        b -- ; c-- ; 
                        int x = rp[b] ;
                        rp.erase(b , 1) ; 
                        rp.insert(c, x );
                }else{
                        cin >> b ;
                        int x = rp[b-1] ; 
                        cout<< char(x + 'a') <<"\n" ;
                }
        }

        return 0 ; 
}

• Subtask 1: 100 / 100