Compilare: user.cpp: In function ‘int main()’: user.cpp:14:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d", &n); ^ user.cpp:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d", &v[i]); ^ user.cpp:56:47: warning: ‘h[1]’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (w[j+1]-w[j]-1<w[j+2]-w[j+1]-1 &&w[j+2]!=h[1]&&w[j+1]!=h[0]) ^ user.cpp:56:61: warning: ‘h[0]’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (w[j+1]-w[j]-1<w[j+2]-w[j+1]-1 &&w[j+2]!=h[1]&&w[j+1]!=h[0]) ^