The following program generates an error. Why? const int NUM_ELEMENTS 5; %3D vector userVals(NUM_ELEMENTS); unsigned int i; userVals.at(0) = 13; userVals.at(1) = 7; userVals.at(2) = 4; %3D %3D 43B %3D for (i = 0; i <= NUM_ELEMENTS; ++i) { cout << userVals.at(i) < endl; O The for loop tries to access an index that is out of the vector's valid range. Variable i is declared as an unsigned integer. O The vector userVals has 5 elements, but only 3 have values assigned. O The integer NUM_ELEMENTS is declared as a constant

The following program generates an error. Why? const int NUM_ELEMENTS 5; %3D vector userVals(NUM_ELEMENTS); unsigned int i; userVals.at(0) = 13; userVals.at(1) = 7; userVals.at(2) = 4; %3D %3D 43B %3D for (i = 0; i <= NUM_ELEMENTS; ++i) { cout << userVals.at(i) < endl; O The for loop tries to access an index that is out of the vector's valid range. Variable i is declared as an unsigned integer. O The vector userVals has 5 elements, but only 3 have values assigned. O The integer NUM_ELEMENTS is declared as a constant

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

The following program generates an error. Why?
const int NUM_ELEMENTS
5;
vector<int> userVals(NUM_ELEMENTS);
unsigned int i3;
userVals.at(0)
13;
userVals.at(1) = 7;
userVals.at(2)
43B
%3D
for (i = 0; i <= NUM_ELEMENTS; ++i) {
%3D
cout << userVals.at(i) << endl;
O The for loop tries to access an index that is out of the vector's valid range.
Variable i is declared as an unsigned integer.
The vector userVals has 5 elements, but only 3 have values assigned.
O The integer NUM_ELEMENTS is declared as a constant

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