Borderou de evaluare (job #8840)

Compilare: user.c: In function ‘main’: user.c:13:1: warning: implicit declaration of function ‘rast’ [-Wimplicit-function-declaration] user.c:15:1: warning: implicit declaration of function ‘power’ [-Wimplicit-function-declaration] user.c:7:8: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:8:8: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:11:6: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]