Question

and then add them. You Program 1. Write a program that will extract two numbers (type double) from a sentence a can set the sentence as a string constant or you can enter it from the keyboard EXAMPLE: Suppose the string entered (or constant) is "The sum of 25.25 and 13.50 is. The program should print to the screen: 25.25 plus 13.50 is 38.75 NOTE: The two numbers can be any value. Don't hard c ode to the values shown in the example. //C++ Template #include <iostream > #include <fstream > #include dona nip> #include <string> using namespace std; int main(void) cout << endl << endl; system("pause") return θ; rts the time to 24 hour

Answer 1

#include<iostream>
#include <string.h>
#include <stdlib.h>
#include<stdio.h>
using namespace std;

int main()
{
char s[1000];
cout << "Enter the string: ";
scanf(" %[^\n]s",s);

string temp = "";
double a = 0,b = 0;
int first = 0;
int flag = 1;
for(int i = 0;i < strlen(s);i++)
{
if(s[i]==' ' && flag == 1 && temp.length() > 0)
{
if(first == 0){
a = atof(temp.c_str());
first++;
}
else
{
b = atof(temp.c_str());
break;
}
temp = "";
flag = 1;
}
else if((s[i] >= '0' && s[i] <= '9') || s[i] == '.')
{
temp += s[i];
}
else
{
flag = 1;
temp = "";
}
}

double add = a + b;

cout << "sum of " << a << " and " << b << " is " << add << endl;
return 0;
}

D: documents\ 75.exe Enter the string: The sum of 25.25 and 123.45 is: sum of 25.25 and 123.45 is 148.7 Process returned 0 (0x0) execution time : 23.753 s Press any key to continue