iepuri.cpp: In function `void readinput()': iepuri.cpp:17: warning: comparison between signed and unsigned integer expressions iepuri.cpp:23: warning: comparison between signed and unsigned integer expressions iepuri.cpp: In function `void go(unsigned int)': iepuri.cpp:31: warning: comparison between signed and unsigned integer expressions iepuri.cpp:37: warning: comparison between signed and unsigned integer expressions iepuri.cpp: In function `void writeoutput()': iepuri.cpp:53: warning: comparison between signed and unsigned integer expressions