Question
In: Computer Science
#include<iostream> #include<cmath> using namespace std; int p = 7; void main() { extern double var ;...
#include<iostream>
#include<cmath>
using
namespace std;
int p
= 7;
void
main()
{
extern
double var ;
int p
= abs(-90);
cout
<< ::p + p - var << endl;
system("pause");
}
double
var = 5.5;
Solutions
Expert Solution
Code::
#include<iostream>
#include<cmath>
using namespace std;
//global declaration of the p
int p = 7;
int main()
{
// declar the var value externally
extern double var ;
// local variable p 90 absolute value
int p = abs(-90);
// here ::p means global value of p = 7 and p means local value
of p = 90
//::p + p - var = 7 + 90 - 5.5
//hence the result is 91.5
cout << ::p + p - var << endl;
//system pause
system("pause");
}
//external declaratoin of the var
double var = 5.5;
venereology answered 1 year agoRelated Solutions
#include <iostream> #include <string> #include <ctime> using namespace std; void displayArray(double * items, int start, int...
#include <iostream>
#include <string>
#include <ctime>
using namespace std;
void displayArray(double * items, int start, int end)
{
for (int i = start; i <= end; i++)
cout << items[i] << " ";
cout << endl;
}
//The legendary "Blaze Sort" algorithm.
//Sorts the specified portion of the array between index start and end (inclusive)
//Hmmm... how fast is it?
/*
void blazeSort(double * items, int start, int end)
{
if (end - start > 0)
{
int p =...
c++ #include <iostream> #include <string> #include <ctime> using namespace std; void displayArray(double * items, int start,...
c++
#include <iostream>
#include <string>
#include <ctime>
using namespace std;
void displayArray(double * items, int start, int end)
{
for (int i = start; i <= end; i++)
cout << items[i] << " ";
cout << endl;
}
//The legendary "Blaze Sort" algorithm.
//Sorts the specified portion of the array between index start and end (inclusive)
//Hmmm... how fast is it?
/*
void blazeSort(double * items, int start, int end)
{
if (end - start > 0)
{
int p...
#include <iostream> using namespace std; const int DECLARED_SIZE = 10; void fillArray(int a[], int size, int&...
#include <iostream>
using namespace std;
const int DECLARED_SIZE = 10;
void fillArray(int a[], int size, int& numberUsed) {
cout << "Enter up to " << size << " nonnegative whole numbers.\n"
<< "Mark the end of the list with a negative number.\n";
int next, index = 0;
cin >> next;
while ((next >= 0) && (index < size))
{
a[index] = next;
index++;
cin >> next;
}
numberUsed = index;
}
int search(const int a[], int numberUsed, int target)
{...
#include <iostream> using namespace std; int main() { int hour; int min; for (hour = 1;...
#include <iostream>
using namespace std;
int main()
{
int hour;
int min;
for (hour = 1; hour <= 12;
hour++)
{
for (min = 0;
min <= 59; min++)
{
cout
<< hour << ":" << min << "AM" <<
endl;
}
}
return 0;
}
1. Type in the above program as
time.cpp. Add a comment to include your name and date.
Compile and run.
2. What is the bug or logic error
in the above program? Add the...
#include <iostream> using namespace std; void count( int begin[], int end[] ) { int index, current[4]...
#include <iostream>
using
namespace std;
void
count( int begin[], int end[] )
{
int
index, current[4] = { begin[0], begin[1], begin[2], begin[3]
};
add:
goto
print;
carry:
if (
current[index] < end[index] - 1 ) {
current[index]++;
goto
add;
}
else
if ( index > 0 ) {
current[index] = begin[index];
index--;
goto
carry;
}
else
return;
print:
cout
<< current[0] << current[1] << current[2]
<< current[3] << endl;
index
= 3;
goto
carry;
}
int
main( )
{
int...
#include <iostream> #include <iomanip> using namespace std; int main() { int studentid, numberreverse[20], count =...
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
int studentid, numberreverse[20], count = 0,
maximum = 0, minimum = 0;
cout << "Enter your student ID number:
";
cin >> studentid;
cout << "Student ID Number = " <<
studentid << endl;
while (studentid != 0)
{
numberreverse[count] = studentid % 10;
if (count ==
0)
{
minimum = numberreverse[count];
maximum = minimum;
}
else...
What is the output of the following program? #include <iostream> using namespace std; void showDouble(int); //Function...
What is the output of the following program?
#include <iostream>
using namespace std;
void showDouble(int); //Function
prototype
int main()
{
int num;
for (num = 0; num < 10; num++)
showDouble(num);
return 0;
}
// Definition of function
showDouble
void showDouble(int value)
{
cout << value << ‘\t’
<< (value * 2) << endl;
}
Please do the following Program and hand in the code and
sample runs.
Write a program using the following function prototypes:
double getLength();
double getWidth();...
write the algorithm for this the code?!. #include<iostream> using namespace std; #include<string.h> int main() { char...
write the algorithm for this the code?!.
#include<iostream>
using namespace std;
#include<string.h>
int main()
{
char plain[50], cipher[50]="", decrypt[50]="";
int subkeys[50], len;
cout<<"Enter the plain text:"<<endl;
cin>>plain;
cout<<"Enter the first subkey:"<<endl;
cin>>subkeys[0];
_strupr(plain);
len = strlen(plain);
/**********Find the subkeys**************/
for(int i=1; i<len; i++)
{
if ((plain[i-1]>='A') &&
(plain[i-1]<='Z'))
{
subkeys[i] = plain[i-1]-65;
}
}
/****************ENCRYPTION***************/
for(int i=0; i<len; i++)
{
if ((plain[i]>='A') && (plain[i]<='Z'))
{
cipher[i] = (((plain[i]-65)+subkeys[i])%26)+65;
}...
#include<iostream> using namespace std; class point{ private: int x; int y; public: void print()const; void setf(int,...
#include<iostream>
using namespace std;
class point{
private:
int x;
int y;
public:
void print()const;
void setf(int, int);
};
class line{
private:
point ps;
point pe;
public:
void print()const;
void setf(int, int, int, int);
};
class rectangle{
private:
line length[2];
line breadth[2];
public:
void print()const;
void setf(int, int, int, int, int, int, int, int);
};
int main(){
rectangle r1;
r1.setf(3,4,5,6, 7, 8, 9, 10);
r1.print();
system("pause");
return 0;
}
a. Write function implementation of rectangle, line and
point.
b. What is...
#include <iostream> #include <string> #include <fstream> #include <vector> #include <sstream> using namespace std; int main() {...
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
int main()
{
ifstream infile("worldpop.txt");
vector<pair<string, int>>
population_directory;
string line;
while(getline(infile, line)){
if(line.size()>0){
stringstream ss(line);
string country;
int population;
ss>>country;
ss>>population;
population_directory.push_back(make_pair(country,
population));
}
}
cout<<"Task 1"<<endl;
cout<<"Names of countries with
population>=1000,000,000"<<endl;
for(int i=0;i<population_directory.size();i++){
if(population_directory[i].second>=1000000000){
cout<<population_directory[i].first<<endl;
}
}
cout<<"Names of countries with
population<=1000,000"<<endl;
for(int i=0;i<population_directory.size();i++){
if(population_directory[i].second<=1000000){
cout<<population_directory[i].first<<endl;
}
}
}
can u pls explain the logic behind this code up to 10 lines
pls， many thanks
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