Submission #1285466

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285466		lyra_g13	Experimental Charges (NOI19_charges)	C++20	18 / 100	13 ms	1252 KiB

charges

#include <bits/stdc++.h>
using ll = long long;

int main(){
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    ll n , q;
    std::cin >> n >> q;
    std::vector<ll> arr(n);
    arr[0] = 1;
    while(q--){
        char t; 
        ll a , b;
        std::cin >> t >> a >>b;
        --a; 
        --b;
       if(t == 'Q'){
            if(arr[a] == 1 and arr[b] == 1 ){
                std::cout << "R\n";
            }
           else if(arr[a] == 1 and arr[b] == -1 ){
                std::cout << "A\n";
            }
            else if(arr[a] == -1 and arr[b] == 1 ){
                std::cout << "A\n";
            }
           else if(arr[a] == -1 and arr[b] == -1 ){
                std::cout << "R\n";
            }
           else if(arr[a] == 1 and arr[b] == 0 ){
                std::cout << "?\n";
            }
           else if(arr[a] == 0 and arr[b] == 1){
                std::cout << "?\n";
            }
       }
       else if(t == 'A'){
        if(arr[a] == 1){
            arr[b] = -1;
        }
        else{
            arr[a] = -1;
        }
    }
        if(t == 'R'){
         if(arr[a] == 1){
            arr[b] = 1;
        }
        else{
            arr[a] = 1;
        }
        }
       }
    }
   


    
    

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 0 / 14
• Subtask 4: 0 / 12
• Subtask 5: 0 / 25
• Subtask 6: 0 / 31