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  1. #include <iostream>
  2. #include <iomanip>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     int n(0),m(0);
  9.     cin >> n >> m;
  10.     int matrix[n][m];
  11.     char arr[n][m];
  12.     arr[0][0] = '0';
  13.     for(int i = 0;i<n;++i){
  14.         for(int j = 0;j<m;++j){
  15.             cin >> matrix[i][j];
  16.             if(!i && !j)continue;
  17.             if(!i){
  18.                 matrix[i][j] += matrix[i][j-1];
  19.                 arr[i][j] = 'R';
  20.             }
  21.             if(!j){
  22.                 matrix[i][j] += matrix[i-1][j];
  23.                 arr[i][j] = 'D';
  24.             }
  25.             if(i && j){
  26.                 matrix[i][j] += max(matrix[i-1][j],matrix[i][j-1]);
  27.                 if(max(matrix[i-1][j],matrix[i][j-1]) == matrix[i-1][j])arr[i][j] = 'D';
  28.                 else arr[i][j] = 'R';
  29.             }
  30.         }
  31.     }
  32.     cout << matrix[n-1][m-1];
  33.     cout << "\n";
  34.  
  35.     string s;
  36.     for(int i = n-1;;){
  37.         for(int j = m-1;;){
  38.             if(arr[i][j] == '0'){
  39.                 s.reserve();
  40.                 cout << s << endl;
  41.                 return 0;
  42.             }
  43.             s.push_back(arr[i][j]);
  44.             s.push_back(' ');
  45.             if(arr[i][j] == 'R'){
  46.                 j -= 1;
  47.                 continue;
  48.             }
  49.             if(arr[i][j] == 'D'){
  50.                 i -= 1;
  51.                 continue;
  52.             }
  53.         }
  54.     }
  55.  
  56.     cout << endl;
  57.     return 0;
  58. }
  59.  
Time limit exceeded #stdin #stdout 5s 3935016KB
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stdout 
Standard output is empty
https://ideone.com/qK1ai0
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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