Borderou de evaluare (job #9155)

Compilare: user.cpp: In function ‘void back(int, int)’: user.cpp:7:36: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] user.cpp:7:54: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] user.cpp:7:72: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:48:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:49:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:50:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:53:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:54:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]