以下是演示basic_istream::ignore()的程序: 程序1: // C++ program to demonstrate// basic_istream::ignore#include<bits/stdc++.h>usingnamespacestd;// Driver Codeintmain(){// Input Stringistringstreaminput("12\n""It is a string\n""14\n");for(;;) {intn;// Taking input streamed string...