Eroare de compilare: user.cpp:7:14: error: ‘FILE* freopen’ redeclared as different kind of symbol FILE *freopen("cezar.in", "r" ,stdin); ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:46, from user.cpp:1: /usr/include/stdio.h:279:14: error: previous declaration of ‘FILE* freopen(const char*, const char*, FILE*)’ extern FILE *freopen (__const char *__restrict __filename, ^ user.cpp:8:14: error: ‘FILE* freopen’ redeclared as different kind of symbol FILE *freopen("cezar.out", "w", stdout); ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:46, from user.cpp:1: /usr/include/stdio.h:279:14: error: previous declaration of ‘FILE* freopen(const char*, const char*, FILE*)’ extern FILE *freopen (__const char *__restrict __filename, ^ user.cpp: In function ‘int main()’: user.cpp:19:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i%i", &n, &k); ^ user.cpp:22:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i%i", &a, &b); ^