oj.uz

Submission #923321

# Submission time Handle Problem Language Result Execution time Memory
923321 2024-02-07T06:18:30 Z vjudge1 Maxcomp (info1cup18_maxcomp) C++17
100 / 100
 108 ms 15956 KB 
#include <bits/stdc++.h>
#define int long long 
using namespace std;
string yn(bool ans,string y="YES",string n="NO"){
    return (ans?y:n);
}
#define all(a) a.begin(),a.end()
void gogo(){
    int n,m;
    cin>>n>>m;
    int a[n][m];
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin>>a[i][j];
        }
    }
    int ans=-INT_MAX;
    int mn[n+1][m];
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            mn[i][j]=a[i][j]-i-j;
            if(i>0){
                mn[i][j]=min(mn[i][j],mn[i-1][j]);
            }
            if(j>0){
                mn[i][j]=min(mn[i][j],mn[i][j-1]);
            }
            if(j and i){
                mn[i][j]=min(mn[i][j],mn[i-1][j-1]);
            }
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            ans=max(ans,a[i][j]-i-j-mn[i][j]);
        }
    }
    for(int i=0;i<n;i++){
        reverse(a[i],a[i]+m);
    }
    for(int i=0;i<n-i-1;i++){
        for(int j=0;j<m;j++){
            swap(a[i][j],a[n-1-i][j]);
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            mn[i][j]=a[i][j]-i-j;
            if(i>0){
                mn[i][j]=min(mn[i][j],mn[i-1][j]);
            }
            if(j>0){
                mn[i][j]=min(mn[i][j],mn[i][j-1]);
            }
            if(j and i){
                mn[i][j]=min(mn[i][j],mn[i-1][j-1]);
            }
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            ans=max(ans,a[i][j]-i-j-mn[i][j]);
        }
    }
    for(int i=0;i<n-i-1;i++){
        for(int j=0;j<m;j++){
            swap(a[i][j],a[n-1-i][j]);
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            mn[i][j]=a[i][j]-i-j;
            if(i>0){
                mn[i][j]=min(mn[i][j],mn[i-1][j]);
            }
            if(j>0){
                mn[i][j]=min(mn[i][j],mn[i][j-1]);
            }
            if(j and i){
                mn[i][j]=min(mn[i][j],mn[i-1][j-1]);
            }
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            ans=max(ans,a[i][j]-i-j-mn[i][j]);
        }
    }for(int i=0;i<n;i++){
        reverse(a[i],a[i]+m);
    }
    for(int i=0;i<n-i-1;i++){
        for(int j=0;j<m;j++){
            swap(a[i][j],a[n-1-i][j]);
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            mn[i][j]=a[i][j]-i-j;
            if(i>0){
                mn[i][j]=min(mn[i][j],mn[i-1][j]);
            }
            if(j>0){
                mn[i][j]=min(mn[i][j],mn[i][j-1]);
            }
            if(j and i){
                mn[i][j]=min(mn[i][j],mn[i-1][j-1]);
            }
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            ans=max(ans,a[i][j]-i-j-mn[i][j]);
        }
    }
    cout<<ans-1<<endl;
}
main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    long long  t=1;
    // cin>>t;
    while(t--){
        gogo();
    }
}

Compilation message

maxcomp.cpp:117:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  117 | main(){
      | ^~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 388 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 468 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 388 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 98 ms 15948 KB Output is correct
19 Correct 97 ms 15952 KB Output is correct
20 Correct 92 ms 15308 KB Output is correct
21 Correct 98 ms 15956 KB Output is correct
22 Correct 98 ms 15956 KB Output is correct
23 Correct 108 ms 15952 KB Output is correct
24 Correct 96 ms 15192 KB Output is correct