Compilare: user.cpp: In function ‘int caut_bin(int, int)’: user.cpp:18:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i-step > 0 && val <= sol[i-step]) ^ user.cpp: In function ‘void scm()’: user.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=2; i<=N; ++i) ^ user.cpp: In function ‘void curata()’: user.cpp:49:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<=maax; ++i) ^ user.cpp: In function ‘void numar()’: user.cpp:58:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=2; i<=N; ++i) ^ user.cpp:69:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1; i<=N; ++i) ^ user.cpp: In function ‘int main()’: user.cpp:79:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=N; ++i) ^