Compilare: user.cpp: In function ‘int matchAstr(int, int)’: user.cpp:19: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:52: warning: comparison between signed and unsigned integer expressions user.cpp:76: warning: comparison between signed and unsigned integer expressions user.cpp:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:50: warning: ‘start’ may be used uninitialized in this function user.cpp:50: warning: ‘stop’ may be used uninitialized in this function