Borderou de evaluare (job #329491)

Eroare de compilare: user.cpp:6:1: error: expected initializer before ‘char’ user.cpp: In function ‘int main()’: user.cpp:10:5: error: expected ‘;’ before ‘freopen’ user.cpp:15:14: error: ‘i’ was not declared in this scope user.cpp:17:18: error: ‘chr’ was not declared in this scope user.cpp:17:23: error: ‘a’ was not declared in this scope user.cpp:23:9: error: ‘xf’ was not declared in this scope user.cpp:23:14: error: ‘yf’ was not declared in this scope user.cpp:24:14: error: ‘i’ was not declared in this scope user.cpp:31:9: error: ‘r’ was not declared in this scope user.cpp:11:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]