Submission #363131

#	Time	Username	Problem	Language	Result	Execution time	Memory
363131		lukameladze	Maxcomp (info1cup18_maxcomp)	C++14	100 / 100	409 ms	19308 KiB

maxcomp

# include <bits/stdc++.h>
using namespace std;
long long n,m,a[1005][1005],dp[1005][1005],ans;
int main() {
     cin>>n>>m;
     for (int i=1; i<=n; i++) {
          for (int j=1; j<=m; j++) {
               cin>>a[i][j];
          }
     }
     for (int i=1; i<=n; i++) {
          for (int j=1; j<=m; j++) {
               dp[i][j]=a[i][j];
               if(i>1) dp[i][j]=max(dp[i][j], dp[i-1][j]-1);
               if(j>1) dp[i][j]=max(dp[i][j],dp[i][j-1]-1);
            }
     }
     for (int i=n; i>=1; i--) {
          for (int j=m; j>=1; j--) {
               dp[i][j]=max(a[i][j],dp[i][j]);
               if(j<m) dp[i][j]=max(dp[i][j], dp[i][j+1]-1);
               if(i<n) dp[i][j]=max(dp[i][j],dp[i+1][j]-1);
          }
     }
     for (int i=1; i<=n; i++) {
          for (int j=1; j<=m; j++) {
               ans=max(ans,dp[i][j]-a[i][j]);
          }
     }
     cout<<ans-1<<endl;
}

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40