Compilare: user.cpp: In function ‘int main()’: user.cpp:62:6: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int a, b, z1, z2; ^ user.cpp:62:9: warning: variable ‘b’ set but not used [-Wunused-but-set-variable] int a, b, z1, z2; ^ user.cpp:50:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d%d", &n, &d_x, &d_y); ^ user.cpp:56:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d", &x[i], &y[i]); ^ user.cpp: In function ‘int cautare_coordonata_stanga_jos(int*, int, int, int*)’: user.cpp:42:9: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] return p; ^