oj.uz

Submission #638852

# Submission time Handle Problem Language Result Execution time Memory
638852 2022-09-07T16:56:27 Z ShirleyM Treasure (different grader from official contest) (CEOI13_treasure2) C++17
100 / 100
 1 ms 468 KB 
#include <bits/stdc++.h>
#include "treasure.h"
 
using namespace std;
 
typedef long long ll;
 
const int N_MAX = 100;
 
int N;
 
bool found[N_MAX + 2][N_MAX + 2];
 
int UL[N_MAX + 2][N_MAX + 2];
int UR[N_MAX + 2][N_MAX + 2];
int DL[N_MAX + 2][N_MAX + 2];
int DR[N_MAX + 2][N_MAX + 2];
 
void findTreasure(int N) {
    int mid = (N + 1) / 2;
    // Compute sum of cheaper corner
    for (int i = 1; i <= mid; i++) {
        for (int j = 1; j <= mid; j++) {
            DR[i][j] = countTreasure(i, j, N, N);
        }
    }
    for (int i = 1; i <= mid; i++) {
        for (int j = mid; j < N; j++) {
            DL[i][j] = countTreasure(i, 1, N, j);
        }
    }
    for (int i = 1; i <= mid; i++) {
        DL[i][N] = DR[i][1];
    }
    for (int i = mid; i < N; i++) {
        for (int j = 1; j <= mid; j++) {
            UR[i][j] = countTreasure(1, j, i, N);
        }
    }
    for (int j = 1; j <= mid; j++) {
        UR[N][j] = DR[1][j];
    }
    for (int i = mid; i < N; i++) {
        for (int j = mid; j < N; j++) {
            UL[i][j] = countTreasure(1, 1, i, j);
        }
    }
    for (int i = mid; i <= N; i++) {
        UL[i][N] = UR[i][1];
    }
    for (int j = mid; j <= N; j++) {
        UL[N][j] = DL[1][j];
    }
    // Compute sum of upper-left corner
    for (int i = 1; i <= mid - 1; i++) {
        for (int j = mid; j <= N; j++) {
            UL[i][j] = DL[1][j] - DL[i + 1][j];
        }
    }
    for (int i = mid; i <= N; i++) {
        for (int j = 1; j <= mid - 1; j++) {
            UL[i][j] = UR[i][1] - UR[i][j + 1];
        }
    }
    for (int i = 1; i <= mid - 1; i++) {
        for (int j = 1; j <= mid - 1; j++) {
            UL[i][j] = UL[i][N] + UL[N][j] + DR[i + 1][j + 1] - DR[1][1];
        }
    }
    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= N; j++) {
            found[i][j] = UL[i][j] - UL[i - 1][j] - UL[i][j - 1] + UL[i - 1][j - 1];
        }
    }
    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= N; j++) {
            if (found[i][j] == true) {
                Report(i, j);
            }
        }
    }
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct - N = 5, K = 289, score = 10
2 Correct 0 ms 340 KB Output is correct - N = 10, K = 4475, score = 10
3 Correct 1 ms 340 KB Output is correct - N = 15, K = 22289, score = 10
4 Correct 1 ms 340 KB Output is correct - N = 16, K = 28928, score = 10
5 Correct 1 ms 340 KB Output is correct - N = 55, K = 4005289, score = 10
6 Correct 1 ms 340 KB Output is correct - N = 66, K = 8305803, score = 10
7 Correct 1 ms 440 KB Output is correct - N = 77, K = 15383161, score = 10
8 Correct 1 ms 468 KB Output is correct - N = 88, K = 26244416, score = 10
9 Correct 1 ms 468 KB Output is correct - N = 99, K = 42032201, score = 10
10 Correct 1 ms 468 KB Output is correct - N = 100, K = 43760000, score = 10