#include <stdio.h> #include <string.h> using namespace std; int main() { int n1,n2=3,n3,k=0; int i=0,j=0,n=0; char str; char index[100]={0}; char arr[100][100]={0}; while((str=getchar())!='\n') { index[j] = str; ++j;} for (i = 0; i < 100; ++i) { if (index[i] != 0) { ++n; } } k = n1 = ...