Borderou de evaluare (job #22270)

Compilare: user.cpp: In function ‘int main()’: user.cpp:22:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:8:11: warning: unused variable ‘i’ [-Wunused-variable] user.cpp:8:13: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:6:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:20:13: warning: ‘n’ may be used uninitialized in this function [-Wuninitialized] /tmp/ccqdq3Rl.o: In function `main': user.cpp:(.text.startup+0x69): warning: the `gets' function is dangerous and should not be used.