Eroare de compilare: user.cpp:35:32: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char word[WORD_LENGTH]= { NULL }; ^ user.cpp: In function ‘void Read()’: user.cpp:77:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &p); ^ user.cpp:78:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &m); ^ user.cpp:79:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s", &word[0]); ^ user.cpp:87:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%c", &c); ^ user.cpp:91:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%c", &c); ^ /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.a(malloc.o): In function `free': (.text+0x4b00): multiple definition of `free' /tmp/ccW9rsPK.o:(.data+0x0): first defined here /usr/bin/ld: Warning: size of symbol `free' changed from 4900 in /tmp/ccW9rsPK.o to 140 in /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.a(malloc.o) /usr/bin/ld: Warning: type of symbol `free' changed from 1 to 2 in /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libc.a(malloc.o) collect2: error: ld returned 1 exit status