bile1.cpp: In function 'int dfsu(int)': bile1.cpp:18: warning: comparison between signed and unsigned integer expressions bile1.cpp: In function 'int dfsg(int)': bile1.cpp:37: warning: comparison between signed and unsigned integer expressions bile1.cpp: In function 'int main()': bile1.cpp:52: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result bile1.cpp:54: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result