Eroare de compilare: user.cpp: In function ‘int random()’: user.cpp:24:23: error: new declaration ‘int random()’ inline int random(void) { ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from user.cpp:3: /usr/include/stdlib.h:327:17: error: ambiguates old declaration ‘long int random()’ extern long int random (void) __THROW; ^ user.cpp: In function ‘int main()’: user.cpp:152:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rev.in", "r", stdin); ^ user.cpp:153:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rev.out", "w", stdout); ^ user.cpp:161:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:167:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &l, &r, &k); ^