#include <bits/extc++.h>
#include <iostream>
#include <cmath>
#include <unordered_map>
#include <map>
#include <set>
#include <queue>
#include <vector>
#include <string>
#include <iomanip>
#include <algorithm>
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
using namespace std;
typedef long long ll;
ll linf = 1e15+1;
inline void scoobydoobydoo(){
ios::sync_with_stdio(false);
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
}
using namespace __gnu_pbds;
template<class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag,
tree_order_statistics_node_update>;
int main(){
scoobydoobydoo();
int n, m; cin >> n >> m;
Tree<pair<int, int> > s; // %3 0 -> x, 1 -> y, 2 -> z
for (int i = 0; i < n; i++){
char c; cin >> c;
if (c == 'x')s.insert({i, 0});
else if (c == 'y')s.insert({i, 1});
else s.insert({i, 2});
}
vector<char> ans;
for (int i = 0; i < m; i++){
char c; cin >> c;
if (c == 'a'){
int x, y; cin >> x >> y;
x--; y--;
auto it = s.find_by_order(x);
int sec = (*it).second;
s.erase(it);
s.insert({y, sec+3});
} else {
int x; cin >> x;
x--;
auto it = s.find_by_order(x);
int sec = (*it).second%3;
if (sec == 0)ans.push_back('x');
else if (sec == 1)ans.push_back('y');
else ans.push_back('z');
}
}
for (char c : ans)cout << c << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
