Submission #295853

#	Time	Username	Problem	Language	Result	Execution time	Memory
295853		daniel920712	Seats (IOI18_seats)	C++14	11 / 100	4070 ms	39824 KiB

seats

#include "seats.h"
using namespace std;
pair < int , int > all[1000005];
int N;
void give_initial_chart(int H,int W,vector<int> R,vector<int> C)
{
    int i;
    N=H*W;
    for(i=0;i<N;i++) all[i]=make_pair(R[i],C[i]);
}

int swap_seats(int a, int b)
{
    int i;
    swap(all[a],all[b]);
    int u=all[0].first,d=all[0].first,l=all[0].second,r=all[0].second;
    int ans=0;
    for(i=0;i<N;i++)
    {
        d=max(d,all[i].first);
        u=min(u,all[i].first);
        r=max(r,all[i].second);
        l=min(l,all[i].second);
        if((r-l+1)*(d-u+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