ordonare.cpp: In function `int main()': ordonare.cpp:30: warning: comparison between signed and unsigned integer expressions ordonare.cpp:35: warning: comparison between signed and unsigned integer expressions ordonare.cpp:41: warning: comparison between signed and unsigned integer expressions ordonare.cpp:46: warning: comparison between signed and unsigned integer expressions /tmp/cczSDiNq.o(.text+0x5e): In function `main': : the `gets' function is dangerous and should not be used.