Compilare: main.cpp: In function 'int main()': main.cpp:81:51: warning: array subscript has type 'char' [-Wchar-subscripts] 81 | if( mat[i][j] == 'M' && verif[marker[i][j]] != 1 ) { | ~~~~~~~~~~~^ main.cpp:83:32: warning: array subscript has type 'char' [-Wchar-subscripts] 83 | if( verif[marker[i][j]] != 1 ) { | ~~~~~~~~~~~^