Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:39:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &T); ^ user.cpp:41:211: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf%lf%lf%lf%lf%d", &parallelogram[i].x[0], &parallelogram[i].y[0], &parallelogram[i].z[1], &parallelogram[i].x[1], &parallelogram[i].y[1], &parallelogram[i].z[0], &parallelogram[i].direction); ^ user.cpp: In function ‘void ColorPieces(Parallelogram)’: user.cpp:71:29: warning: ‘z2’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x1, x2, y1, y2, z1, z2; ^ user.cpp:71:25: warning: ‘z1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x1, x2, y1, y2, z1, z2; ^ user.cpp:102:9: warning: ‘y2’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int j = y1; j < y2; j++) { ^ user.cpp:71:17: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x1, x2, y1, y2, z1, z2; ^ user.cpp:101:5: warning: ‘x2’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i = x1; i < x2; i++) { ^ user.cpp:71:9: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized] int x1, x2, y1, y2, z1, z2; ^