Submission #904847

#	Time	Username	Problem	Language	Result	Execution time	Memory
904847		Trisanu_Das	Seats (IOI18_seats)	C++17	11 / 100	4097 ms	40776 KiB

seats

#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;
}

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