Compilare: main.cpp: In function 'void statement1(int, int)': main.cpp:29:85: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | if (validWaysColumn[index] > 1 && matrix[validWaysLine[index]][validWaysColumn[index] - 1] == currentIsland) { | ~~~~~~~~~~~~~~~~~~~^ main.cpp:34:53: warning: array subscript has type 'char' [-Wchar-subscripts] 34 | matrix[validWaysLine[index]][validWaysColumn[index] - 1] = 'x'; | ~~~~~~~~~~~~~~~~~~~^ main.cpp:36:111: warning: array subscript has type 'char' [-Wchar-subscripts] 36 | if (validWaysLine[index] > 1 && matrix[validWaysLine[index] - 1][validWaysColumn[index]] == currentIsland) { | ~~~~~~~~~~~~~~~~~~~~~^ main.cpp:41:83: warning: array subscript has type 'char' [-Wchar-subscripts] 41 | matrix[validWaysLine[index] - 1][validWaysColumn[index]] = 'x'; | ~~~~~~~~~~~~~~~~~~~~~^ main.cpp:43:87: warning: array subscript has type 'char' [-Wchar-subscripts] 43 | if (validWaysColumn[index] < 100 && matrix[validWaysLine[index]][validWaysColumn[index] + 1] == currentIsland) { | ~~~~~~~~~~~~~~~~~~~^ main.cpp:48:52: warning: array subscript has type 'char' [-Wchar-subscripts] 48 | matrix[validWaysLine[index]][validWaysColumn[index] + 1] = 'x'; | ~~~~~~~~~~~~~~~~~~~^ main.cpp:50:113: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | if (validWaysLine[index] < 100 && matrix[validWaysLine[index] + 1][validWaysColumn[index]] == currentIsland) { | ~~~~~~~~~~~~~~~~~~~~~^ main.cpp:55:80: warning: array subscript has type 'char' [-Wchar-subscripts] 55 | matrix[validWaysLine[index] + 1][validWaysColumn[index]] = 'x'; | ~~~~~~~~~~~~~~~~~~~~~^