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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4.  
  5. int main() {
  6.     int n,m,a[1000][1000],sum[1000][1000];
  7.     cin>>n>>m;
  8.     for(int i=1;i<=n;i++){
  9.         for(int j=1;j<=m;j++){
  10.             cin>>a[i][j];
  11.         }
  12.     }
  13.     for(int i=1;i<=n;i++){
  14.        for(int j=1;j<=m;j++){
  15.            if(j-1==0){
  16.                sum[i][j]=sum[i-1][j];
  17.            }
  18.            else if(i-1==0){
  19.                sum[i][j]=sum[i][j-1];
  20.            }
  21.            else{
  22.               sum[i][j]=max(sum[i][j-1],sum[i-1][j]);
  23.            }
  24.            sum[i][j]+=a[i][j];
  25.        }
  26.     }
  27.     cout<<sum[n][m];
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0s 5292KB
comments (?)
stdin
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4 5
0 2 1 3 4
3 2 4 1 5 
3 2 1 5 1
2 3 4 2 2
stdout
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19
https://ideone.com/LK8Mky
language:
C++14 (gcc 8.3)
created:
17 days ago
visibility:
public

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