Borderou de evaluare (job #31038)

Compilare: user.c: In function ‘main’: user.c:7:21: warning: unused variable ‘r’ [-Wunused-variable] user.c:7:15: warning: unused variable ‘m’ [-Wunused-variable] user.c:7:13: warning: unused variable ‘j’ [-Wunused-variable] user.c:5:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:6:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:8:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:11:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]