Compilare: user.cpp: In function ‘bool check(int)’: user.cpp:31:17: warning: left operand of comma operator has no effect [-Wunused-value] k=min(k1,(k2,k3)); ^ user.cpp: In function ‘int main()’: user.cpp:71:9: warning: statement has no effect [-Wunused-value] for (dr;dr>=st;dr--) ^ user.cpp:91:8: warning: variable ‘k1’ set but not used [-Wunused-but-set-variable] int k1,k2,k3,k; ^ user.cpp:91:11: warning: variable ‘k2’ set but not used [-Wunused-but-set-variable] int k1,k2,k3,k; ^ user.cpp:91:14: warning: variable ‘k3’ set but not used [-Wunused-but-set-variable] int k1,k2,k3,k; ^ user.cpp:97:11: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] A[i]-=k; ^ user.cpp:65:21: warning: ‘rs’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st=0,dr=100000,rs; ^