palc.cpp: In function `int palindrom(char*)': palc.cpp:13: warning: comparison between signed and unsigned integer expressions palc.cpp: In function `int perms(int, char*)': palc.cpp:28: warning: control reaches end of non-void function palc.cpp: In function `int permd(int, char*)': palc.cpp:35: warning: comparison between signed and unsigned integer expressions palc.cpp:40: warning: control reaches end of non-void function palc.cpp: In function `int main()': palc.cpp:52: warning: comparison between signed and unsigned integer expressions palc.cpp:62: warning: comparison between signed and unsigned integer expressions