제출 #904847

#제출 시각아이디문제언어결과실행 시간메모리
904847Trisanu_DasSeats (IOI18_seats)C++17
11 / 100
4097 ms40776 KiB
#include "seats.h"
#include<bits/stdc++.h>
using namespace std;

vector<int> r, c;
int h, w;

void give_initial_chart(int H, int W, vector<int>R, vector<int>C) {
    h = H; w = W; r = R; c = C;
}

int swap_seats(int a, int b) {
    swap(r[a], r[b]);
    swap(c[a], c[b]);
    int minr = h+1, maxr = -1, minw = w + 1, maxw = -1, ans = 0;
    for(int i = 0; i < h * w; i++) {
        minr = min(minr, r[i]);
        maxr = max(maxr, r[i]);
        minw = min(minw, c[i]);
        maxw = max(maxw, c[i]);
        if((maxr - minr + 1) * (maxw  - minw + 1) == i + 1) ans++;
    }
    return ans;
}
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