Eroare de compilare: user.cpp: In function ‘void citire()’: user.cpp:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:69: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:70: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result In file included from /usr/include/stdio.h:910, from user.cpp:1: In function ‘char* gets(char*)’, inlined from ‘void citire()’ at user.cpp:22: /usr/include/bits/stdio2.h:230: warning: call to ‘__gets_warn’ declared with attribute warning: please use fgets or getline instead, gets can't specify buffer size /tmp/cchnL8wQ.o: In function `citire()': user.cpp:(.text+0x24f): warning: the `gets' function is dangerous and should not be used. /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib/libc.a(malloc.o): In function `free': (.text+0x4b50): multiple definition of `free' /tmp/cchnL8wQ.o:(.bss+0x3f44): first defined here /usr/bin/ld: Warning: size of symbol `free' changed from 4 in /tmp/cchnL8wQ.o to 186 in /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib/libc.a(malloc.o) /usr/bin/ld: Warning: type of symbol `free' changed from 1 to 2 in /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib/libc.a(malloc.o) /tmp/cchnL8wQ.o: In function `citire()': user.cpp:(.text+0x26b): warning: the `gets' function is dangerous and should not be used. collect2: ld returned 1 exit status