Compilare: main.cpp: In function 'int main()': main.cpp:18:14: warning: array subscript has type 'char' [-Wchar-subscripts] ap[l1][l2]=1; ^ main.cpp:18:18: warning: array subscript has type 'char' [-Wchar-subscripts] ap[l1][l2]=1; ^ main.cpp:19:14: warning: array subscript has type 'char' [-Wchar-subscripts] ap[l2][l1]=1; ^ main.cpp:19:18: warning: array subscript has type 'char' [-Wchar-subscripts] ap[l2][l1]=1; ^ main.cpp:10:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nrcuv.in","r",stdin); ^ main.cpp:11:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nrcuv.out","w",stdout); ^ main.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ main.cpp:17:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c %c\n",&l1,&l2); ^