제출 #518282

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
518282		brayden04	Experimental Charges (NOI19_charges)	C++14	0 / 100	77 ms	4232 KiB

charges

#include <bits/stdc++.h>
#define endl '\n'
#define int long long

using namespace std;

int N, Q;
map<int, int> charges;

signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);

  cin >> N >> Q;

  for (int i = 0; i < Q; i++){
    string T = "";
    int A = 0;
    int B = 0;
    cin >> T >> A >> B;

    if (T == "A"){
      if (charges[A] == 0 && charges[B] == 0){
        charges[A] = 1;
        charges[B] = -1;
      }
      else if (charges[A] == 1){
        charges[B] = -1;
      }
      else if (charges[A] == -1){
        charges[B] = 1;
      }
      else if (charges[B] == -1){
        charges[A] = 1;
      }
      else if (charges[B] == 1){
        charges[A] = -1;
      }
    }
    else if (T == "R"){
      if (charges[A] == 0 && charges[B] == 0){
        charges[A] = 1;
        charges[B] = 1;
      }
      else if (charges[A] == 1 && charges[B] == 0){
        charges[B] = 1;
      }
      else if (charges[A] == -1 && charges[B] == 0){
        charges[B] = -1;
      }
      else if (charges[B] == -1 && charges[A] == 0){
        charges[A] = -1;
      }
      else if (charges[B] == 1 && charges[A] == 0){
        charges[A] = 1;
      }
    }
    else if (T == "Q"){
      if (charges[A] != -1 || charges[A] != 1 || charges[B] != -1 || charges[B] != 1){
        cout << "?" << endl;
      }
      else if (charges[A] == charges[B]){
        cout << "R" << endl;
      }
      else if ((charges[A] != 0) && (charges[B] != 0) && (charges[A] != charges[B])){
        cout << "A" << endl;
      }
    }
  }
}

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