Borderou de evaluare (job #18504)

Compilare: user.c: In function 'main': user.c:20:5: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration] user.c:20:9: warning: incompatible implicit declaration of built-in function 'strlen' [enabled by default] user.c:51:5: warning: implicit declaration of function 'verific' [-Wimplicit-function-declaration] user.c:54:9: warning: implicit declaration of function 'exit' [-Wimplicit-function-declaration] user.c:54:9: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default] user.c:63:9: warning: implicit declaration of function 'cifre' [-Wimplicit-function-declaration] user.c:65:13: warning: implicit declaration of function 'power' [-Wimplicit-function-declaration] user.c:92:13: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default] user.c:11:10: warning: unused variable 'c' [-Wunused-variable] user.c:10:41: warning: unused variable 'stop' [-Wunused-variable] user.c:10:9: warning: unused variable 'i' [-Wunused-variable] user.c:16:10: warning: ignoring return value of 'fgets', declared with attribute warn_unused_result [-Wunused-result]