police.cpp: In function 'int main()': police.cpp:49: warning: comparison between signed and unsigned integer expressions police.cpp:49: warning: comparison between signed and unsigned integer expressions police.cpp:49: warning: comparison between signed and unsigned integer expressions police.cpp:45: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result police.cpp:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result