Borderou de evaluare (job #304232)

Compilare: user.cpp: In function ‘int main()’: user.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:45:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:13:9: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:12:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:16:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:39:43: warning: ‘start’ may be used uninitialized in this function [-Wuninitialized]