vecini2.cpp: In function 'int main()': vecini2.cpp:33: warning: comparison between signed and unsigned integer expressions vecini2.cpp:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result vecini2.cpp:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result vecini2.cpp:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result vecini2.cpp:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result vecini2.cpp:27: warning: array subscript is above array bounds