Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14:13: error: ‘seen’ was not declared in this scope seen[i] = 0; ^ user.cpp:16:18: error: ‘x’ was not declared in this scope gets(x + 1); ^ user.cpp:23:13: error: ‘seen’ was not declared in this scope seen[ret] = 1; ^ user.cpp:26:18: error: ‘seen’ was not declared in this scope if (!seen[i]) { ^ user.cpp:4:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bunicu.in", "r", stdin); ^ user.cpp:5:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bunicu.out", "w", stdout); ^ user.cpp:8:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:11:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^