Compilare: main.cpp: In function 'int read()': main.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int Search_0(int, int)': main.cpp:47:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v[m] <= val) ~~~~~^~~~~~ main.cpp:59:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] > val) ~~~~~^~~~~ main.cpp:63:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] == val) ~~~~~^~~~~~ main.cpp: In function 'int Search_1(int, int)': main.cpp:81:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] <= val) ~~~~~^~~~~~ main.cpp:93:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] > val) ~~~~~^~~~~ main.cpp: In function 'int Search_2(int, int)': main.cpp:111:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] < val) ~~~~~^~~~~ main.cpp:124:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[m] < val) ~~~~~^~~~~