rima.cpp: In function 'int main()': rima.cpp:28: warning: comparison between signed and unsigned integer expressions rima.cpp:44: warning: comparison between signed and unsigned integer expressions rima.cpp:60: warning: comparison between signed and unsigned integer expressions rima.cpp:76: warning: comparison between signed and unsigned integer expressions rima.cpp:85: warning: comparison between signed and unsigned integer expressions rima.cpp:88: warning: comparison between signed and unsigned integer expressions rima.cpp:91: warning: comparison between signed and unsigned integer expressions rima.cpp:94: warning: comparison between signed and unsigned integer expressions