Programming in Modern C++ Week 1 Assignment Answers

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Programming in Modern C++ Week 1 Assignment Answers (Jan-Apr 2025)

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Que. 1) Consider the following program:

#include <iostream>
#include <stack>
using namespace std;
char str[] = "COMPUTER";
stack<char> s1, s2;
int i;
for (i = 0; i < strlen(str); i++)
    s1.push(str[i]);
while (!s1.empty()) {
    s2.push(s1.top());
    s1.pop();
}
while (!s2.empty()) {
    cout << s2.top();
    s2.pop();
}
return 0;

a) COMPUTER
b) REIUPHDC
c) UTERCOHP
d) CINPRETU

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Que. 2) Which of the following is a container adapter?
a) stack
b) queue
c) deque
d) priority-queue

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Que. 3) Consider the following code segment:

#include <iostream>
using namespace std;
int main() {
    char data[] = "2453";
    char key = '5';
    if (binary_search(data, data+5, key)) {
        cout << "found";
    } else {
        cout << "not found";
    }
    return 0;
}

Identify the appropriate option to fill in the blank such that the output is “found.”
a) key
b) data, data+5, key
c) data, key, data+5
d) &key, &data[5]

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Que. 4) Consider the following code:

#include <iostream>
#include <algorithm>
using namespace std;
void modify(int* arr) {
    rotate(arr, arr+3, arr+2);
    rotate(arr+4, arr+3, arr+5);
}
int main() {
    int arr[5];
    for (int i = 0; i < 5; ++i) {
        cin >> arr[i];
    }
    modify(arr);
    for (int i = 0; i < 5; ++i) {
        cout << arr[i];
    }
    return 0;
}

What will be the output?
a) 1 2 3 4 5
b) 5 4 3 2 1
c) 4 5 1 2 3
d) 1 5 4 3 2

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Que. 5) Consider the following code segment:

#include <iostream>
#include <vector>
using namespace std;
int main() {
    vector<int> cVec(3, -1);
    for (int i = 0; i < 3; i++) {
        cVec[i] = (i + 1) * 10;
    }
    cVec.resize(3);
    cVec.resize(3, 110);
    for (int i = 0; i < cVec.size(); i++) {
        cout << cVec[i] << " ";
    }
    return 0;
}

What will be the output?
a) 10 20 30 20 40 60
b) -1 -1 -1 10 20 30 20 40 60
c) -1 -1 -1 10 20 30 0 0 0 20 40 60
d) 10 20 30

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Que. 6) Consider the following code segment:

#include <iostream>
#include <algorithm>
using namespace std;
int main() {
    int iarr[] = {10, 50, 40, 10, 50};
    rotate(iarr, iarr+6, 50);
    for (int i = 0; i < 4; ++i)
        cout << iarr[i] << " ";
    return 0;
}

Fill in the blank such that the output is 40 10 10 50.
a) rotate(iarr, iarr+6, 50)
b) rotate(iarr, iarr+6, iarr[5])
c) rotate(iarr, iarr+6, iarr[4])
d) rotate(iarr, iarr+5, 50)

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Que. 7) Consider the following code segment:

#include <iostream>
#include <algorithm>
using namespace std;
int main() {
    int idata[] = {1, 2, 3, 4, 5};
    int n = sizeof(idata) / sizeof(idata[0]);
    for (int i = 0; i < n / 2; i++) {
        int temp = idata[i];
        replace(idata, idata + 5, temp, *(idata + n - i - 1));
        replace(idata + i + 1, idata + 5, idata[n - i - 1], temp);
    }
    for (int i = 0; i < 5; ++i) {
        cout << idata[i] << " ";
    }
    return 0;
}

What will be the output?
a) 3 2 1 2 3
b) 1 2 3 4 5
c) 5 4 3 2 1
d) 5 4 3 4 5

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Que. 8) Consider the following code segment:

#include <iostream>
#include <string>
using namespace std;
int main(void) {
    string str1 = "Modern ";
    string str2 = "C++";
    str1.append(str2);
    cout << str1;
    return 0;
}

What is the appropriate option to fill in the blank at LINE-I, such that the output of the code would be “Modern C++”?
a) str1 + str2
b) strcat(str1, str2)
c) str1.append(str2)
d) str1.insert(str2)

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Que. 9) Consider the following code segment:

#include <iostream>
#include <algorithm>
using namespace std;
int main() {
    int iArr[] = {40, 50, 10, 30, 20};
    rotate(iArr, iArr+4, iArr+6);
    for (int i = 0; i < 5; i++) {
        cout << iArr[i] << " ";
    }
    return 0;
}

What will be the output?
a) 10 30 40 50 20
b) 50 40 30 20 10
c) 10 20 30 40 50
d) 30 20 10 40 50

View Answer

Programming in Modern C++ Week 1 Assignment Answers (Jul-Dec 2024)

Course Link: Click Here

Q1.Consider the following program
Fill in the blank at LINE-1 such that the output is Good Morning.
a) message.resize(12)
b) message.clear()
c) message.replace(0, 12, “Good Morning”)
d) strcpy(message, “Good Morning”)

Answer: a) message.resize(12)

Q2.Consider the following code segment.
Identify the appropriate option(s) to fill in the blank at LINE-1, such that the output is:
2 4 9 8 6 3 1
a) &arr[0], &arr[0] + 3, compare
b) arr, arr + 3, compare
c) &arr[0], &arr[0] + 2, compare
d) arr, arr+ 2, compare

Answer: a) &arr[0], &arr[0] + 3, compare
b) arr, arr + 3, compare

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Q3. Consider the following code segment.
What will be the output?
a) 60 15 25 35 45
b) 60 25 15 35 45
c) 60 25 35 45 15
d) 60 25 35 15 45

Answer: a) 60 15 25 35 45