Submission #1370534

#TimeUsernameProblemLanguageResultExecution timeMemory
1370534psigurdMosaic (IOI24_mosaic)C++20
22 / 100
849 ms112148 KiB
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

vector<ll> mosaic(vector<int> X, vector<int> Y, vector<int> T, vector<int> B, vector<int> L, vector<int> R){
    vector<ll> ans;
    int n = X.size();
    int q = T.size();

    map<pair<int, int>, bool> arr; // Vi beregner kun nogen få værdier
    for (int i = 0; i < n; i++){
        for (int j = 0; min(i, j) <= 3 && j < n; j++){
            if (i == 0){
                arr[{i, j}] = X[j];
            }
            else if (j == 0){
                arr[{i, j}] = Y[i];
            }
            else{
                arr[{i, j}] = 1 - (arr[{i - 1, j}] || arr[{i, j - 1}]);
            }
        }
    }
    // for (int i = 0; i < n; i++){
    //     for (int j = 0; j < n; j++){
    //         if (min(i, j) <= 3){
    //             cout << arr[{i, j}] << " ";
    //         }
    //         else{
    //             cout << ". ";
    //         }
    //     }
    //     cout << "\n";
    // }

    for (int k = 0; k < q; k++){
        int row = T[k];
        int col = L[k];
        if (row <= 3 || col <= 3){
            ans.push_back(arr[{row, col}]);
        }
        else if (row < col){
            col -= row;
            row = 0;
            row += 3;
            col += 3;
            ans.push_back(arr[{row, col}]);
        }
        else{
            row -= col;
            col = 0;
            row += 3;
            col += 3;
            ans.push_back(arr[{row, col}]);
        }
    }
    return ans;
}

// int main(){
//     vector<ll> ans = mosaic({1, 0, 0, 1, 0, 0, 0, 1, 1, 1}, {1, 1, 1, 1, 0, 0, 1, 1, 0, 0}, {4, 5, 7, 7, 8}, {0, 3}, {4, 6, 4, 8, 8}, {3, 2});
//     for (auto &p: ans){
//         cout << p << "\n";
//     }
//     return 0;
// }

// Vi behøver kun de første 4 calculations
// Så hvordan fortsætter vi derfra? Jeg tror på fullsolve.
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