#include #include using namespace std; int main() { int letter = 0; int digit = 0; int space = 0; int other = 0; char buf[1024] = {0}; cin.getline(buf, sizeof(buf)); // write your code here...... char *p; for(p=buf;*p!='\0';p++){ if((*p>='a'&&*p<='z')||(*p>='A'&&*p&l...