Question

(c++) Write a predicate function that checks whether two vectors have the same elements in the same order.

Write a predicate function that checks whether two vectors have the same elements in the same order

bool equals(vector<int> a, vector<int> b)

provided code :

#include <iostream>
#include <vector>

using namespace std;

bool equals(vector<int> a, vector<int> b) {
// TODO
}

int main() {

// TODO

// Print Expected, "Vectors a and b are " (print "equal." if they are. Otherwise, print "not equal.") "\n"

return 0;
}

Answer 1

CODE

#include <iostream>

#include <vector>

using namespace std;

bool equals(vector<int> a, vector<int> b) {

if (a.size() != b.size()) {

return false;

}

for (int i=0; i<a.size(); i++) {

if (a[i] != b[i]) {

return false;

}

}

return true;

}

int main() {

vector<int> a {1, 2, 3, 4, 5};

vector<int> b {1, 2, 3, 4, 5};

vector<int> c{1, 2, 4, 3, 5};

if (equals(a, b)) {

cout << "a and b are equal" << endl;

} else {

cout << "a and b are not equal" << endl;

}

if (equals(a, c)) {

cout << "a and c are equal" << endl;

} else {

cout << "a and c are not equal" << endl;

}

return 0;

}

OUTPUT

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