mesaj1.cpp: In function 'void solve(int)': mesaj1.cpp:27: warning: comparison between signed and unsigned integer expressions mesaj1.cpp:28: warning: comparison between signed and unsigned integer expressions mesaj1.cpp:31: warning: comparison between signed and unsigned integer expressions mesaj1.cpp: In function 'int main()': mesaj1.cpp:68: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result mesaj1.cpp:69: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result mesaj1.cpp:71: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp:75: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp:83: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result mesaj1.cpp:87: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result