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Object-Oriented ProgrammingCoding problems

Object-Oriented Programming: coding problems

Write a program that reads the input and prints the answer. Run checks it against every test, including hidden ones.

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A farmer has several rectangular plots. Each plot is described by a width and a height. Model a plot as a Rectangle class with a private width and height and a const method area(). Read every plot and print the total area of all of them.
Use long long for the numbers, because the total can be larger than an int holds.
Input. The first line holds `n`, the number of plots. Each of the next `n` lines holds a width and a height.
Output. One integer: the sum of the areas.
Example 1 input
```
3
2 3
4 5
1 1
```
Output
```
27
```
Example 2 input
```
2
7 1
3 3
```
Output
```
16
```
LanguageC++
#include <iostream> using namespace std; int main() { // Read n, then n pairs of width and height. // Add width * height for each pair and print the total on one line. return 0; }