Compilare: user.cpp: In function ‘int main()’: user.cpp:86: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:87: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:89: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:92: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: In function ‘int Search1(int, int, int)’: user.cpp:10: warning: ‘last’ may be used uninitialized in this function user.cpp: In function ‘int Search2(int, int, int)’: user.cpp:26: warning: ‘last’ may be used uninitialized in this function /tmp/cc89ulxZ.o: In function `main': user.cpp:(.text+0x498): warning: the `gets' function is dangerous and should not be used.