echitabil.cpp: In function 'int main()': echitabil.cpp:16: warning: comparison between signed and unsigned integer expressions echitabil.cpp:22: warning: comparison between signed and unsigned integer expressions echitabil.cpp:24: warning: comparison between signed and unsigned integer expressions echitabil.cpp:25: warning: comparison between signed and unsigned integer expressions echitabil.cpp:26: warning: comparison between signed and unsigned integer expressions echitabil.cpp:40: warning: comparison between signed and unsigned integer expressions echitabil.cpp:15: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result echitabil.cpp:18: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result