Compilare: user.cpp: In function ‘int main()’: user.cpp:26:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] if( countLitere[ s[ i ] ] == 0 ) contor++; ^ user.cpp:27:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] countLitere[ s[ i ] ]++; ^ user.cpp:33:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] if( --countLitere[ x ] == 0 ) contor--; ^ user.cpp:35:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( Q.size() > maxim ){ ^ user.cpp:18:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, i, j, c, contor, maxim; ^ user.cpp:15:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.in","r",stdin); ^ user.cpp:16:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.out","w",stdout); ^ user.cpp:22:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%*c",&n,&c); ^ user.cpp:23:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^