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Submission #533963

# Submission time Handle Problem Language Result Execution time Memory
533963 2022-03-07T18:09:51 Z ioi The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 1948 ms 184776 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 = en, md ;
        int ans = -1 ;

        if(!(MN[n- 1][c] >= from && MXY[n - 1][c] <= to)){
        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 ;

            
            if(n + m > 1000)break;

        } en = min(en , ans + 1);
        }
     //  debug(ans)

       // 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 460 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 460 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 0 ms 460 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 460 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 460 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 0 ms 460 KB Output is correct
15 Correct 1 ms 716 KB Output is correct
16 Correct 7 ms 6860 KB Output is correct
17 Correct 18 ms 9240 KB Output is correct
18 Correct 17 ms 9220 KB Output is correct
19 Correct 18 ms 9288 KB Output is correct
20 Correct 17 ms 8260 KB Output is correct
21 Correct 19 ms 9288 KB Output is correct
22 Correct 21 ms 9164 KB Output is correct
23 Correct 21 ms 9332 KB Output is correct
24 Correct 19 ms 8328 KB Output is correct
25 Correct 19 ms 9288 KB Output is correct
26 Correct 19 ms 9332 KB Output is correct
27 Correct 18 ms 9288 KB Output is correct
28 Correct 20 ms 9348 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 460 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 460 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 0 ms 460 KB Output is correct
15 Correct 1 ms 716 KB Output is correct
16 Correct 7 ms 6860 KB Output is correct
17 Correct 18 ms 9240 KB Output is correct
18 Correct 17 ms 9220 KB Output is correct
19 Correct 18 ms 9288 KB Output is correct
20 Correct 17 ms 8260 KB Output is correct
21 Correct 19 ms 9288 KB Output is correct
22 Correct 21 ms 9164 KB Output is correct
23 Correct 21 ms 9332 KB Output is correct
24 Correct 19 ms 8328 KB Output is correct
25 Correct 19 ms 9288 KB Output is correct
26 Correct 19 ms 9332 KB Output is correct
27 Correct 18 ms 9288 KB Output is correct
28 Correct 20 ms 9348 KB Output is correct
29 Incorrect 1948 ms 184776 KB Output isn't correct
30 Halted 0 ms 0 KB -