Compilare: user.cpp: In function ‘int main()’: user.cpp:42:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(vfchar && Importance[Exp[i]]<=Importance[Stack[vfchar]]){ ^ user.cpp:42:73: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(vfchar && Importance[Exp[i]]<=Importance[Stack[vfchar]]){ ^ user.cpp:37:19: warning: unused variable ‘Result’ [-Wunused-variable] int long i=0, Result; ^~~~~~ user.cpp:28:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.in", "r", stdin); ^ user.cpp:29:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.out", "w", stdout); ^ user.cpp:31:32: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(Exp+1, 100005, stdin); ^ In file included from /usr/include/stdio.h:936:0, from /usr/include/c++/6/cstdio:42, from user.cpp:1: In function ‘char* fgets(char*, int, FILE*)’, inlined from ‘int main()’ at user.cpp:31:32: /usr/include/bits/stdio2.h:261:58: warning: call to ‘__fgets_chk_warn’ declared with attribute warning: fgets called with bigger size than length of destination buffer return __fgets_chk_warn (__s, __bos (__s), __n, __stream); ^