Borderou de evaluare (job #579390)

Compilare: main.cpp: In function 'int perimetru(int, int, int, int&)': main.cpp:20:26: warning: array subscript has type 'char' [-Wchar-subscripts] 20 | if(frecv[v[l-1][c]]==0) | ~~~~~~~~^ main.cpp:23:27: warning: array subscript has type 'char' [-Wchar-subscripts] 23 | frecv[v[l-1][c]]=1; | ~~~~~~~~^ main.cpp:29:26: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | if(frecv[v[l][c-1]]==0) | ~~~~~~~~^ main.cpp:32:27: warning: array subscript has type 'char' [-Wchar-subscripts] 32 | frecv[v[l][c-1]]=1; | ~~~~~~~~^ main.cpp:38:26: warning: array subscript has type 'char' [-Wchar-subscripts] 38 | if(frecv[v[l][c+1]]==0) | ~~~~~~~~^ main.cpp:41:27: warning: array subscript has type 'char' [-Wchar-subscripts] 41 | frecv[v[l][c+1]]=1; | ~~~~~~~~^ main.cpp:47:26: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | if(frecv[v[l+1][c]]==0) | ~~~~~~~~^ main.cpp:50:27: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | frecv[v[l+1][c]]=1; | ~~~~~~~~^