Submission #879985

#	Time	Username	Problem	Language	Result	Execution time	Memory
879985		Elvin_Fritl	Collider (IZhO11_collider)	C++17	100 / 100	128 ms	3624 KiB

collider

#include <bits/stdc++.h>
using namespace std;
 
#define io                      \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
 
 
typedef long long ll;
 
ll bp(ll n,ll m){
    if(m == 0){
        return 1;
    }
    if(m == 1){
        return n;
    }
    if(m%2==0){
        return bp(n*n,m/2);
    }
    return n*bp(n,m-1);
}
 
 
const int N =  1e6 + 545, M = 33, inf = 1e9 + 99;
const ll inff = 1e12;

 
int main() {
	int n,q;
	string s;
	cin >> n >> q >> s;
	vector<pair<int,int>>v;
	while(q--) {
		char typ;
		cin >> typ;
		if(typ == 'a') {
			int x , y;
			cin >> x >> y;
			v.push_back({x, y});
		}
		else {
			int ind;
			cin >> ind;
			for(int j=(int)v.size()-1;j >= 0;j--) {
				if(v[j].second == ind) {
					ind = v[j].first;
					continue;
				}
				if(v[j].second < ind) {
					ind--;
				}
				if(v[j].first <= ind) {
					ind++;	
				}
			}
			cout << s[ind - 1] << endl;
		}		
	}
    
}

• Subtask 1: 100 / 100