Eroare de compilare: main.cpp: In function 'int main()': main.cpp:27:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("permutari.in", "r", stdin); ^ main.cpp:28:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("permutari.out", "w", stdout); ^ main.cpp:30:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(malloc.o): In function `__libc_free': (.text+0x6f90): multiple definition of `free' ./ccmGfqZK.o:(.bss+0x20): first defined here /usr/bin/x86_64-linux-gnu-ld: Warning: size of symbol `free' changed from 8 in ./ccmGfqZK.o to 434 in /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(malloc.o) /usr/bin/x86_64-linux-gnu-ld: Warning: type of symbol `free' changed from 1 to 2 in /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libc.a(malloc.o) collect2: error: ld returned 1 exit status Non zero exit status: 1