Borderou de evaluare (job #150090)

Compilare: user.c: In function ‘main’: user.c:6:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:7:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:9:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:12:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:46:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:78:9: warning: ‘y’ may be used uninitialized in this function [-Wuninitialized] user.c:78:9: warning: ‘x’ may be used uninitialized in this function [-Wuninitialized] user.c:78:16: warning: ‘y1’ may be used uninitialized in this function [-Wuninitialized] user.c:78:16: warning: ‘x1’ may be used uninitialized in this function [-Wuninitialized]