C++
1. What is the final output?
2. Why is 2 the ouput for (int)*c? Please explain what happens during the line c = c + *p +1;
#include <iostream>
using namespace std;
int main() {
int arr[5] = { 5,2,3,1,4 };
int* p = arr;
cout << (int)*p << endl;
unsigned char* c = (unsigned char*)arr;
p = p + 2;
c = c + *p + 1;
cout << (int)*p << endl;
cout << (int)*c << endl;
return 0;
}
Answer 1:
Output is 5,3,2
p is pointing to arr so when we access the P it will print the first element of the array
we are adding p+2 so now it will moves 2 blocks so points to 3rd element which 3 so it prints 3
so now are c is pointing to starting of the array , next we are adding c+*p+1 means c+3+1 so we are adding 4 to c it will move 4 blocks
In 2nd cout we are type casting to int * means now we are converting back to int address so adding 4 to int address means it will point to 2 block so it will print 2
Answer 2: there we are converting it to Int address to get the 2nd element from the array
Note : If you like my answer please rate and help me it is very Imp for me
C++ 1. What is the final output? 2. Why is 2 the ouput for (int)*c? Please...
What is the difference between these two programs? #include <iostream> using namespace std; int DontPanic(int & x); int z = 10; void main() { char x = 'y'; int y = 5; int z = 100; y = DontPanic(z); cout << x << " " << y << " " << z << endl; } int DontPanic(int & x) { int * p; p = & z; x = (*p)++ + 1; cout << x << " " << *p...
what is the output for the following code? explain the steps. /*#include <iostream> using namespace std; int f(int &i) { i = 10; return(5 * i); } int main() { int n = 5; f(n); cout << n << "\n"; return 0; } #include <iostream> using namespace std; int sub1(int n) { n--; return n; } int main() { int m = 10; for(int j = 0; j < 10; j++) m -= sub1(j); cout << m << "\n"; return...
1. What is wrong with the following C++ program? #include <iostream> int main() { a = 4; b = 6; cout << a << "+" << b << "=" << a+b; return 0; 2. What is wrong with the following C++ program? What was its intended output? #include <iostream> using namespace std; int main() { cout << "What is larger? e pi or pi e?" << endl; double ans1 = exp(pi); double ans2 = pi exp(1.); cout << "epi is...
Explain the results 푤include <iostream> using nanespace std: int nain (O rloat arr[s- (12.5,.11.0, 13.8, 1000.5, 1.5): float ptri-arEIo1: float *ptr2"ptri +3: cout<< +ptr2xcend *ptr2-* (ptr2)+1: //Line 16 cout<< ptr2<<endl: return 0; Bxplaing the results. 5 What Happens if the Line 16 is replaced by *ptr2- (ptr2+1): 6. tincludekiostream> using namespace std: void fun (int arr(I) int for air size = arestizer) isizeor (arr10]); for (i=0;遠くarr size: i++) int main(0 int int array 114](10, 20 30, 401 fun (array 1):...
c++ only. Please follow directions. What does the following program print and why? Comment each line of code to explain what it is doing. #include <iostream> using namespace std; int main() { int track[ ] = { 10, 20, 30, 40 }; int * ptr; ptr = track; track[1] += 30; cout << * ptr << " "; *ptr -= 10; ptr++; cout << * ptr << " "; ptr += 2; cout << * ptr << " "; cout...
Extra Credit: What is the output of the following program? (5 points) #include <iostream> using namespace std; int main ( char greetingl6]- ('H', 'e', T, T, 'o', 0'); cout <<"Greeting message: " cout< greeting << endl return 0;
c++ Implement the following function: 1) Name: ProcessLine a. Parameters: Int 10 character array line, charc b. Job: The function will modify line such that every occurrence of c is replaced by a "*". It will also return the count of c in line. The main() function is provided. You only need to implement the function Processline. #include <iostream> #include <string> using namespace std; int main() char line 200), c; int Count; { cout<<"Enter some text: "; cin.get(line, 200); cout<<"Enter...
Why this C++ code output is 1 1 num is 3 Can u explain to me? Thank u code: #include using namespace std; void xFunction(int num) { do { if (num % 2!= 0) cout << num << " "; num--; } while (num >=1); cout << endl; } int main() { int num = 1; while (num <= 2) { xFunction(num); ++num; } cout << "num is " << num; return 0; }