Borderou de evaluare (job #231380)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:20:41: error: ISO C++ forbids comparison between pointer and integer [-fpermissive] user.cpp:20:42: error: expected ‘;’ before ‘)’ token user.cpp:23:17: warning: statement has no effect [-Wunused-value] user.cpp:20:39: error: label ‘c’ used but not defined user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]