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답안 #533955

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
533955 2022-03-07T18:02:01 Z ioi The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 4000 ms 204456 KB 
#include<bits/stdc++.h>

using namespace std;

#define debug(x) cout << '[' << #x << " is: " << x << "] " << endl;
#define inF freopen("6in.txt" , "r" , stdin);
#define outF freopen("6.txt" , "w" , stdout);
#define imod(a , n) (a % n + n ) % n
#define sor(v) sort(v.begin() , v.end());
#define print(v) for(auto f : v ) cout << f << " " ;
#define rsor(v) sort(v.rbegin() , v.rend());
#define rev(v) reverse(v.begin() , v.end());
#define scan(v)for(auto &it : v)cin >> it ;
#define ll long long
#define int ll
#define logar(x , y) log(x) / log(y)
#define __sum(n) n * (n + 1) / 2
#define __lcm(a , b) a / __gcd(a , b) * b
#define pii pair<int , int >
#define fastio ios_base::sync_with_stdio(false);cin.tie(0);
const int N =  2e3 + 5 ;


set<int> st ;
vector<int> v ;

int n , m ;

int arr[N][N];
int sz ;
int MN[N][N] , MXY[N][N] ,RMN[N][N] , RMX[N][N];

bool check(int from , int to){
    int mx = 0 , mn = 1e9 , en = n;
//cout << from << " "   << to << endl ;
    for(int c = 0 ; c < m ; c ++){

        int l = 0 , r = n - 1, md ;
        int ans = -1 ;


        while(l <= r){


            md = (l + r) / 2;

            //debug(MXY[md][c])

            if(MN[md][c] >= from && MXY[md][c] <= to){

                    ans = md , l = md +1 ;
            }
            else r = md - 1 ;


        }
     //  debug(ans)
        en = min(en , ans + 1);
       // debug(en)
        if(en != n )mx = max(mx ,RMX[en][c]) , mn= min(mn ,RMN[en][c]);



    }



    return mx-mn <= to - from;

}


void process(){


    for(int j = 0 ;j < m;j ++){


        for(int i = 0 ; i < n ; i ++){


            MN[i][j]= arr[i][j] , MXY[i][j] = arr[i][j];


            if(i)MN[i][j] = min(MN[i][j] , MN[i - 1][j]) , MXY[i][j] = max(MXY[i - 1][j] , MXY[i][j]);

        }

    }

   for(int j = 0 ; j < m ; j ++){


        for(int i = n - 1 ; i >= 0 ; i --){


            RMN[i][j]= arr[i][j] , RMX[i][j] = arr[i][j];


            if(i != n - 1)RMN[i][j] = min(RMN[i][j] , RMN[i + 1][j]) , RMX[i][j] = max(RMX[i + 1][j] , RMX[i][j]);
        }
    }





}

int arr2[N][N];
int32_t main()
{   //inF;
    //inF;outF;
    fastio;

    cin >> n >> m ;


    for(int i = 0 ; i <  n; i ++){
        for(int j = 0 ; j <m; j ++){
            cin >> arr[i][j];
            arr2[i][j] =  arr[i][j];

            st.insert(arr[i][j]);
        }
    }

    for(auto f : st)v.push_back(f);


 process();
    sz = v.size();
    ll mnans = v.back() - v[0];
    for(int all = 0 ; all < 2 ; all ++){


        int  l = 0 , r = v.back() - v[0] , md ;



        while(l <= r){


            md = (l + r) / 2 ;


            if(check(v[0] , v[0] + md) || check(v.back() - md , v.back()))mnans = min(mnans , md) ,  r = md- 1 ;
            else l = md + 1 ;


        }


        for(int c = 0 ; c < m ; c ++){
            for(int r = 0 ; r< n ; r ++){
                arr[r][c] = arr2[r][m - 1 - c];
               // debug(arr[r][c])
            }
        }
        process();
    }

    cout << mnans ;

}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 424 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 424 KB Output is correct
5 Correct 1 ms 576 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 576 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 576 KB Output is correct
12 Correct 1 ms 580 KB Output is correct
13 Correct 1 ms 572 KB Output is correct
14 Correct 1 ms 460 KB Output is correct

Subtask #2
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 424 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 424 KB Output is correct
5 Correct 1 ms 576 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 576 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 576 KB Output is correct
12 Correct 1 ms 580 KB Output is correct
13 Correct 1 ms 572 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 8 ms 6932 KB Output is correct
17 Correct 22 ms 9524 KB Output is correct
18 Correct 28 ms 9540 KB Output is correct
19 Correct 30 ms 9572 KB Output is correct
20 Correct 25 ms 8516 KB Output is correct
21 Correct 26 ms 9724 KB Output is correct
22 Correct 24 ms 9628 KB Output is correct
23 Correct 19 ms 9668 KB Output is correct
24 Correct 19 ms 8592 KB Output is correct
25 Correct 21 ms 9696 KB Output is correct
26 Correct 22 ms 9664 KB Output is correct
27 Correct 24 ms 9672 KB Output is correct
28 Correct 22 ms 9660 KB Output is correct

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 424 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 424 KB Output is correct
5 Correct 1 ms 576 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 576 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 576 KB Output is correct
12 Correct 1 ms 580 KB Output is correct
13 Correct 1 ms 572 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 8 ms 6932 KB Output is correct
17 Correct 22 ms 9524 KB Output is correct
18 Correct 28 ms 9540 KB Output is correct
19 Correct 30 ms 9572 KB Output is correct
20 Correct 25 ms 8516 KB Output is correct
21 Correct 26 ms 9724 KB Output is correct
22 Correct 24 ms 9628 KB Output is correct
23 Correct 19 ms 9668 KB Output is correct
24 Correct 19 ms 8592 KB Output is correct
25 Correct 21 ms 9696 KB Output is correct
26 Correct 22 ms 9664 KB Output is correct
27 Correct 24 ms 9672 KB Output is correct
28 Correct 22 ms 9660 KB Output is correct
29 Correct 2361 ms 185400 KB Output is correct
30 Correct 2123 ms 194716 KB Output is correct
31 Correct 2102 ms 194568 KB Output is correct
32 Correct 2079 ms 194764 KB Output is correct
33 Correct 1804 ms 170960 KB Output is correct
34 Correct 2086 ms 194760 KB Output is correct
35 Execution timed out 4078 ms 204456 KB Time limit exceeded
36 Halted 0 ms 0 KB -