Compilare: main.cpp: In function 'int binary0(int, int, int)': main.cpp:14:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]<=val) ~~~~^~~~~ main.cpp:16:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(a[m]>val) ~~~~^~~~ main.cpp:20:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]>val) ~~~~^~~~ main.cpp:22:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]==val) ~~~~^~~~~ main.cpp: In function 'int binary1(int, int, int)': main.cpp:32:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m] <= val) ~~~~~^~~~~~ main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(a[m] > val) ~~~~~^~~~~ main.cpp:38:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]>val) ~~~~^~~~ main.cpp:40:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]==val) ~~~~^~~~~ main.cpp: In function 'int binary2(int, int, int)': main.cpp:50:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m] >= val) ~~~~~^~~~~~ main.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(a[m] < val) ~~~~~^~~~~ main.cpp:56:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]<val) ~~~~^~~~ main.cpp:58:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a[m]==val) ~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:66:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<n; ++i) ~^~ main.cpp:70:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<m; ++i) ~^~