Question

suppose a user input is: 12 3 + 9 0 * 25 4

the numbers and operators are separated by spaces.

please provide a program that is able to read each part separated by spaces, and convert the numbers which are represented as strings to ints

thanks in advance!

Answer 1

Code Screenshot:

Code:

#include<bits/stdc++.h>
using namespace std;

int main()
{
string str;
cout<<"Enter String: ";
getline(cin,str); //string with space
// cout<<str;
//Declaration of vecctor
vector<int>vec;
int len=str.length(),i;
string num="";
for(i=0;i<len;i++)
{
if(str[i]==' ')
{
if(num!="+"&&num!="-"&&num!="*"&&num!="%"&&num!="/")
{
//string to int
int int_num=stoi(num);
vec.push_back(int_num);
}
//cout<<num;
num="";
}
else
num+=str[i];
  
}
if(num!="+"&&num!="-"&&num!="*"&&num!="%"&&num!="/")
{
//string to int
int int_num=stoi(num);
vec.push_back(int_num);
}
for(i=0;i<vec.size();i++)
{
cout<<vec[i]<<" ";
}
  
return 0;
}