turist.cpp: In function 'int main()': turist.cpp:51: warning: comparison between signed and unsigned integer expressions turist.cpp:66: warning: comparison between signed and unsigned integer expressions turist.cpp:49: warning: unused variable 's' turist.cpp:30: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result turist.cpp:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result turist.cpp:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result turist.cpp:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result