oj.uz

Submission #900235

# Submission time Handle Problem Language Result Execution time Memory
900235 2024-01-07T23:47:18 Z Maite_Morale The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 2689 ms 262144 KB 
#include<bits/stdc++.h>
#define F first
#define S second
#define MAX 2005
#define oo 1e18
#define mod 1000000007
#define fast_in ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);cout.setf(ios::fixed);cout.precision(0);
using namespace std;
typedef long long ll;
#define pll pair<ll , ll>
#define vll vector<ll>
#define vvll vector<vll>
#define vpll vector<pll>
 
ll tmn[5][MAX][MAX],tmx[5][MAX][MAX],n,a[MAX][MAX],m;
vll v;
map<ll,ll> mp;
ll OK(ll y,ll z){
    if(y+1==v.size())return abs(v[0]-v.back());
    ll x=v[y];
    //cout<<x<<":";
    ll cl=-1,mx=0,mn=oo;
    for(int i=0;i<n;i++){
        while(cl!=m && tmn[0][i][cl+1]<=x)cl++;
        if(cl!=-1)mx=max(mx,tmx[1][i][cl]);
    }//cout<<mx<<" ";
    mn=min(mn,mx);
    cl=m,mx=0;
    for(int i=0;i<n;i++){
        while(cl-1>=0 && tmn[1][i][cl-1]<=x)cl--;
        if(cl!=-1)mx=max(mx,tmx[0][i][cl]);
    }//cout<<mx<<" ";
    mn=min(mn,mx);
    cl=-1,mx=0;
    for(int i=n-1;i>=0;i--){
        while(cl!=m && tmn[0][i][cl+1]<=x)cl++;
        if(cl!=-1)mx=max(mx,tmx[1][i][cl]);
    }//cout<<mx<<" ";
    mn=min(mn,mx);
    cl=m,mx=0;
    for(int i=n-1;i>=0;i--){
        while(cl-1>=0 && tmn[1][i][cl-1]<=x)cl--;
        if(cl!=-1)mx=max(mx,tmx[0][i][cl]);
    }
    mn=min(mn,mx);
    if(z==1)return max(abs(v[0]-mn),abs(v.back()-v[y+1]));
    if(abs(v[0]-mn)<abs(v.back()-v[y+1]))return 1;
return 0; 
}
int main(){
    fast_in
    cin>>n>>m;
    for(int i=0;i<n;i++){
        tmn[0][i][m]=tmn[1][i][0]=oo;
        for(int j=0;j<m;j++){
            cin>>a[i][j];
            if(mp[a[i][j]]==0){
                mp[a[i][j]]=1;
                v.push_back(a[i][j]);
            }
            tmx[1][i][j]=max(tmx[1][i][j],a[i][j]);
            tmx[1][i][j+1]=tmx[1][i][j];
            tmn[1][i][j]=min(tmn[1][i][j],a[i][j]);
            tmn[1][i][j+1]=tmn[1][i][j];
        }
        for(int j=m-1;j>=0;j--){
            tmx[0][i][j]=max(tmx[0][i][j+1],a[i][j]);
            tmn[0][i][j]=min(tmn[0][i][j+1],a[i][j]);
        }
    }
    sort(v.begin(),v.end());
    // for(auto i:v)cout<<i<<" ";cout<<"\n";
    ll p=0,f=v.size();
    while(abs(f-p)!=1){
        ll md=(p+f)/2;                     // cout<<md;
        if(OK(md,0)==1)p=md;
        else             f=md;           
    }                                          
    if(f==v.size()){cout<<0;return 0;}
    //  cout<<p<<" "<<f<<" ";
    cout<<min(OK(p,1),OK(f,1));
return 0;
}

Compilation message

joioi.cpp: In function 'll OK(ll, ll)':
joioi.cpp:19:11: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     if(y+1==v.size())return abs(v[0]-v.back());
      |        ~~~^~~~~~~~~~
joioi.cpp: In function 'int main()':
joioi.cpp:79:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |     if(f==v.size()){cout<<0;return 0;}
      |        ~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6616 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6604 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6604 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6616 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6604 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6604 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 5 ms 18660 KB Output is correct
17 Correct 21 ms 21456 KB Output is correct
18 Correct 19 ms 21460 KB Output is correct
19 Correct 20 ms 21512 KB Output is correct
20 Correct 18 ms 20948 KB Output is correct
21 Correct 21 ms 21732 KB Output is correct
22 Correct 21 ms 21588 KB Output is correct
23 Correct 21 ms 21708 KB Output is correct
24 Correct 18 ms 21200 KB Output is correct
25 Correct 23 ms 21720 KB Output is correct
26 Correct 21 ms 21708 KB Output is correct
27 Correct 24 ms 21716 KB Output is correct
28 Correct 21 ms 21616 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6616 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6604 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6604 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 5 ms 18660 KB Output is correct
17 Correct 21 ms 21456 KB Output is correct
18 Correct 19 ms 21460 KB Output is correct
19 Correct 20 ms 21512 KB Output is correct
20 Correct 18 ms 20948 KB Output is correct
21 Correct 21 ms 21732 KB Output is correct
22 Correct 21 ms 21588 KB Output is correct
23 Correct 21 ms 21708 KB Output is correct
24 Correct 18 ms 21200 KB Output is correct
25 Correct 23 ms 21720 KB Output is correct
26 Correct 21 ms 21708 KB Output is correct
27 Correct 24 ms 21716 KB Output is correct
28 Correct 21 ms 21616 KB Output is correct
29 Correct 1049 ms 185840 KB Output is correct
30 Correct 1022 ms 189212 KB Output is correct
31 Correct 1049 ms 190692 KB Output is correct
32 Correct 1101 ms 190796 KB Output is correct
33 Correct 856 ms 172472 KB Output is correct
34 Correct 1081 ms 190916 KB Output is correct
35 Runtime error 2689 ms 262144 KB Execution killed with signal 9
36 Halted 0 ms 0 KB -