Compilare: user.cpp: In function ‘int solve(int, int, int, int, char)’: user.cpp:15:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dp[lin][col][dir]>0) ^ user.cpp:16:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] return dp[lin][col][dir]; ^ user.cpp:25:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[lin][col][dir]=1; ^ user.cpp:26:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[lin][col][dir].l=0; ^ user.cpp:27:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[lin][col][dir].c=0; ^ user.cpp:30:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[lin][col][dir]=solve(lin+dl[poz],col+dc[poz],lin,col,(poz+2)%4)+1; ^ user.cpp:31:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[lin][col][dir].l=lin+dl[poz]; ^ user.cpp:32:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[lin][col][dir].c=col+dc[poz]; ^ user.cpp:33:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[lin][col][dir].dir=(poz+2)%4; ^ user.cpp:35:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] return dp[lin][col][dir]; ^ user.cpp: In function ‘int main()’: user.cpp:66:31: warning: ‘dir’ may be used uninitialized in this function [-Wmaybe-uninitialized] auxdir=v[l][c][dir].dir; ^ user.cpp:62:23: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(!(l==0&&c==0)){ ^ user.cpp:62:23: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized]