#include <stdio.h> #include <string.h> int main() { char ch; int i=0; char vowel[]={"a,A,e,E,i,I,o,O,u,U"}; int len=strlen(vowel); while (scanf("%c\n", &ch) != EOF) { for(i=0;i<=len;++i) { if(ch == vowel[i]...