Borderou de evaluare (job #272711)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:19: error: ‘n’ was not declared in this scope user.cpp:11:5: error: expected ‘;’ before ‘for’ user.cpp:11:23: error: expected ‘;’ before ‘)’ token user.cpp:9:9: warning: unused variable ‘nc’ [-Wunused-variable] user.cpp:9:14: warning: unused variable ‘sc’ [-Wunused-variable] user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]