Submission #600925

#	Time	Username	Problem	Language	Result	Execution time	Memory
600925		enerelt14	Seats (IOI18_seats)	C++14	11 / 100	4083 ms	40872 KiB

seats

#include "seats.h"
#include<bits/stdc++.h>
using namespace std;

vector<int> r, c, num;
int h, w;
bool vis[10005][10005];
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){
    for (int i=0;i<h;i++)for (int j=0;j<w;j++)vis[i][j]=0;
    swap(r[a], r[b]);
    swap(c[a], c[b]);
    int mnr=h, mxr=0, mnc=w, mxc=0, ans=0;
    for (int i=0;i<h*w;i++){
        vis[r[i]][c[i]]=1;
        mnr=min(mnr, r[i]);
        mxr=max(mxr, r[i]);
        mnc=min(mnc, c[i]);
        mxc=max(mxc, c[i]);
        if ((mxr-mnr+1)*(mxc-mnc+1)==i+1 && vis[mxr][mxc] && vis[mnr][mnc])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