Compilare: main.cpp: In function 'void Read()': main.cpp:16:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1 ; i<=M ;i++) { ~^~~ main.cpp: In function 'bool OK(int, int)': main.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i<1 || j<1 || (i > N || j> N)) return false; /// daca nu e inafara Matricei. ~~^~~ main.cpp:24:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i<1 || j<1 || (i > N || j> N)) return false; /// daca nu e inafara Matricei. ~^~~