mesaj1.cpp: In function 'void read()': mesaj1.cpp:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp: In function 'void dfs(int)': mesaj1.cpp:33: warning: comparison between signed and unsigned integer expressions mesaj1.cpp: In function 'void get_path()': mesaj1.cpp:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp: In function 'void dp_dfs(int)': mesaj1.cpp:70: warning: comparison between signed and unsigned integer expressions mesaj1.cpp:87: warning: comparison between signed and unsigned integer expressions