oj.uz

Submission #900165

# Submission time Handle Problem Language Result Execution time Memory
900165 2024-01-07T19:31:51 Z Maite_Morale The Kingdom of JOIOI (JOI17_joioi) C++14
60 / 100
 2757 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++){
        ll p=cl,f=m;
        while(abs(p-f)!=1){
            ll md=(p+f)/2;
            if(tmn[0][i][md]<=x)p=md;
            else                f=md;
        }
        cl=p;
        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++){
        ll p=-1,f=cl;
        while(abs(p-f)!=1){
            ll md=(p+f)/2;
            if(tmn[1][i][md]>x)p=md;
            else               f=md;
        }
        cl=f;
        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--){
        ll p=cl,f=m;
        while(abs(p-f)!=1){
            ll md=(p+f)/2;
            if(tmn[0][i][md]<=x)p=md;
            else                f=md;
        }
        cl=p;
        if(cl!=-1)mx=max(mx,tmx[1][i][cl]);
    }//cout<<mx<<" ";
    //cout<<"////////////////////////";
    mn=min(mn,mx);cl=m,mx=0;
    for(int i=n-1;i>=0;i--){
        ll p=-1,f=cl;
        while(abs(p-f)!=1){
            ll md=(p+f)/2;///cout<<tmn[1][i][md]<<" "<<md<<"\n";
            if(tmn[1][i][md]>x)p=md;
            else               f=md;
        }
        cl=f;//cout<<cl<<"-";
        if(cl!=-1)mx=max(mx,tmx[0][i][cl]);
    }//cout<<mx<<" ";
    
   // cout<<"////////////////////////";
    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:103:9: 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]
  103 |     if(f==v.size()){cout<<0;return 0;}
      |        ~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6516 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 2 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 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6620 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6516 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 2 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 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6620 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 4 ms 18524 KB Output is correct
17 Correct 24 ms 21348 KB Output is correct
18 Correct 19 ms 21328 KB Output is correct
19 Correct 19 ms 21200 KB Output is correct
20 Correct 18 ms 20728 KB Output is correct
21 Correct 22 ms 21204 KB Output is correct
22 Correct 20 ms 21204 KB Output is correct
23 Correct 21 ms 21432 KB Output is correct
24 Correct 18 ms 20692 KB Output is correct
25 Correct 21 ms 21456 KB Output is correct
26 Correct 21 ms 21456 KB Output is correct
27 Correct 21 ms 21204 KB Output is correct
28 Correct 21 ms 21460 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6516 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 2 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 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6620 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 4 ms 18524 KB Output is correct
17 Correct 24 ms 21348 KB Output is correct
18 Correct 19 ms 21328 KB Output is correct
19 Correct 19 ms 21200 KB Output is correct
20 Correct 18 ms 20728 KB Output is correct
21 Correct 22 ms 21204 KB Output is correct
22 Correct 20 ms 21204 KB Output is correct
23 Correct 21 ms 21432 KB Output is correct
24 Correct 18 ms 20692 KB Output is correct
25 Correct 21 ms 21456 KB Output is correct
26 Correct 21 ms 21456 KB Output is correct
27 Correct 21 ms 21204 KB Output is correct
28 Correct 21 ms 21460 KB Output is correct
29 Correct 1083 ms 164240 KB Output is correct
30 Correct 1038 ms 167460 KB Output is correct
31 Correct 1122 ms 167540 KB Output is correct
32 Correct 1126 ms 167632 KB Output is correct
33 Correct 884 ms 152684 KB Output is correct
34 Correct 1094 ms 167540 KB Output is correct
35 Runtime error 2757 ms 262144 KB Execution killed with signal 9
36 Halted 0 ms 0 KB -