lang.cpp: In function 'void excerpt(int*)':
lang.cpp:25:9: error: 'l' was not declared in this scope
25 | l score = 0, d = 0;
| ^
lang.cpp:27:30: error: 'score' was not declared in this scope
27 | if (in[i][E[j]]) score += ++d;
| ^~~~~
lang.cpp:27:41: error: 'd' was not declared in this scope
27 | if (in[i][E[j]]) score += ++d;
| ^
lang.cpp:28:18: error: 'd' was not declared in this scope
28 | else d = 0;
| ^
lang.cpp:29:13: error: 'score' was not declared in this scope
29 | if (score > mx) id = i, mx = score;
| ^~~~~
lang.cpp:32:18: error: 'st' was not declared in this scope; did you mean 'std'?
32 | for (int x : st) in[id][x] = 1;
| ^~
| std