Submission #219494

#	Time	Username	Problem	Language	Result	Execution time	Memory
219494		Haunted_Cpp	Topovi (COCI15_topovi)	C++17	18 / 120	421 ms	65540 KiB

topovi

#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <cassert>
#include <string>
#include <cstring>
#include <bitset>
#include <random>
#include <chrono>
#include <iomanip>
 
/*
#pragma GCC optimize ("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
*/
 
#define FOR(i, a, b) for(int i = a; i < (int) b; i++)
#define F0R(i, a) FOR (i, 0, a)
#define ROF(i, a, b) for(int i = a; i >= (int) b; i--)
#define R0F(i, a) ROF(i, a, 0)
#define GO(i, a) for (auto i : a)
 
#define rsz resize
#define eb emplace_back
#define pb push_back
#define sz(x) (int) x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define f first
#define s second
 
using namespace std;
 
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef vector<vi> vvi;
typedef vector<vpii> vvpii;
typedef long long i64;
typedef vector<i64> vi64;
typedef vector<vi64> vvi64;
typedef pair<i64, i64> pi64;
typedef vector<pi64> vpi64;
 
const int dr[] = {+1, -1, +0, +0, +1, -1, +1, -1};
const int dc[] = {+0, +0, +1, -1, +1, -1, -1, +1};
const int ms[] = {+31, +29, +31, 30, +31, +30, +31, +31, +30, +31, +30, +31};
 
const int N = 2e6 + 5;
map<int, int> current_row ;
map<int, int> current_column;

vi linha_xor (N);
vi coluna_xor (N);

map<pii, int> torres;

 
int main () {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, t, q;
  cin >> n >> t >> q;
  i64 total = 1LL * n * n;
  FOR (i, 1, n + 1) {
    linha_xor[0]++;
    current_row[i] = 0;
    coluna_xor[0]++;
    current_row[i] = 0;
  }
  
  F0R (i, t) {
    int linha, coluna, valor;
    cin >> linha >> coluna >> valor;
    
    torres[{linha, coluna}] = valor;
    
    --linha_xor[current_row[linha]];
    current_row[linha] ^= valor;
    ++linha_xor[current_row[linha]];
    
    --coluna_xor[current_column[coluna]];
    current_column[coluna] ^= valor;
    ++coluna_xor[current_column[coluna]];
  } 
  
  i64 not_attacked = 0;
  F0R (i, N) {    
    int valor = i;
    int primeiro = linha_xor[valor];
    int segundo = coluna_xor[valor];
    not_attacked += 1LL * primeiro * segundo;
  }
  
  while (q--) {
    int l1, c1, l2, c2;
    cin >> l1 >> c1 >> l2 >> c2;

    not_attacked -= coluna_xor[current_row[l1]];
    --linha_xor[current_row[l1]]; 
    
    not_attacked -= linha_xor[current_column[c1]];
    --coluna_xor[current_column[c1]];
    
    current_row[l1] ^= torres[{l1, c1}];
    current_column[c1] ^= torres[{l1, c1}];
    
    not_attacked += linha_xor[current_column[c1]];
    ++coluna_xor[current_column[c1]];
    
    not_attacked += coluna_xor[current_row[l1]];
    ++linha_xor[current_row[l1]];


    not_attacked -= coluna_xor[current_row[l2]];
    --linha_xor[current_row[l2]]; 
    
    not_attacked -= linha_xor[current_column[c2]];
    --coluna_xor[current_column[c2]];
    
    current_row[l2] ^= torres[{l1, c1}];
    current_column[c2] ^= torres[{l1, c1}];
    
    not_attacked += coluna_xor[current_row[l2]];
    ++linha_xor[current_row[l2]];
    not_attacked += linha_xor[current_column[c2]];
    ++coluna_xor[current_column[c2]];

    swap (torres[{l1, c1}], torres[{l2, c2}]);  
    
    cout << total - not_attacked << '\n';
  }
  
  return 0;
}

• Subtask 1: 18 / 120