Submission #94171

#	Time	Username	Problem	Language	Result	Execution time	Memory
94171		someone_aa	Seats (IOI18_seats)	C++17	0 / 100	374 ms	23980 KiB

seats

#include <bits/stdc++.h>
#include "seats.h"
#define pb push_back
using namespace std;
vector<int> r;
vector<int> c;
int h, w;

void give_initial_chart(int H, int W, vector<int> R, vector<int> C) {
    h = H; w = W;
    for(int i=0;i<H*W;i++) {
        r.pb(R[i]);
        c.pb(C[i]);
    }
}

int swap_seats(int a, int b) {
    swap(r[a], r[b]);
    swap(c[a], c[b]);

    int max_x = INT_MIN, min_x = INT_MAX;
    int max_y = INT_MIN, min_y = INT_MAX;

    int nxi = 0;
    int br = 0;
    for(int i=0;i<h*w;i = nxi) {
        max_x = max(max_x, r[i]);
        min_x = min(min_x, r[i]);
        max_y = max(max_y, c[i]);
        min_y = min(min_y, c[i]);
        if(i + 1 == (max_x-min_x+1)*(max_y-min_y+1)) {
            nxi = i + 1;
            br++;
        }
        else {
            nxi = max(i + 1, (max_x-min_x+1)*(max_y-min_y+1) - 1);
        }
    }
    return br;
}

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