Submission #566297

#	Time	Username	Problem	Language	Result	Execution time	Memory
566297		elazarkoren	Seats (IOI18_seats)	C++17	11 / 100	4038 ms	39732 KiB

seats

#include <bits/stdc++.h>
#include "seats.h"
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define chkmin(a, b) a = min(a, b)
#define chkmax(a, b) a = max(a, b)
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vii;

const int MAX_N = 1e6 + 5;

int r[MAX_N], c[MAX_N];
int n;

void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
    n = H * W;
    for (int i = 0; i < n; i++) r[i] = R[i], c[i] = C[i];
}

int swap_seats(int a, int b) {
    swap(r[a], r[b]);
    swap(c[a], c[b]);
    int ans = 0;
    int min_r = MAX_N, max_r = 0;
    int min_c = MAX_N, max_c = 0;
    for (int i = 0; i < n; i++) {
        chkmin(min_r, r[i]);
        chkmax(max_r, r[i]);
        chkmin(min_c, c[i]);
        chkmax(max_c, c[i]);
        ans += (max_r - min_r + 1) * (max_c - min_c + 1) == i + 1;
    }
    return ans;
}
//2 3 2
//0 0
//1 0
//1 1
//0 1
//0 2
//1 2
//
//0 5
//0 5

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 6
• Subtask 5: 0 / 33
• Subtask 6: 0 / 30