Borderou de evaluare (job #47638)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:17: error: ‘n’ was not declared in this scope user.cpp:11:10: error: ‘i’ was not declared in this scope user.cpp:13:22: error: ‘x’ was not declared in this scope user.cpp:19:42: warning: suggest parentheses around assignment used as truth value [-Wparentheses] user.cpp:8:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]