turism.cpp: In function 'int main()': turism.cpp:76: warning: comparison between signed and unsigned integer expressions turism.cpp:78: warning: comparison between signed and unsigned integer expressions turism.cpp:89: warning: comparison between signed and unsigned integer expressions turism.cpp:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result turism.cpp:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result turism.cpp:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result turism.cpp:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result