Borderou de evaluare (job #139780)

Compilare: user.cpp: In function ‘int main()’: user.cpp:45:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:60:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:7:13: warning: unused variable ‘m’ [-Wunused-variable] user.cpp:7:15: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:7:17: warning: unused variable ‘pp’ [-Wunused-variable] user.cpp:7:20: warning: unused variable ‘poz’ [-Wunused-variable] user.cpp:5:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:60:9: warning: ‘ch’ may be used uninitialized in this function [-Wuninitialized]