Question

c plus plus

determines which of 5 geographic regions within a major city north south east west and central had the fewest reported traffic accidents last year it should have the following function which are called by main

int get NumAccidents is passed the name of a region it asks the user for the number of traffic accidents reported in that region during the last year validates the input then returns it. it should be called once for each city region.

void findlowest is passed the five accident totals it determins which is the smallest and prints the name of the region, along with its accident figure.

int calc findLowest is passed the five accident totals. it determins which is the smallest and prints the name of the region, along with its accident figure,

int calcAverage should calculate and return the average number of trafiic accidents of 5 regions

int main() demonstrate you functions by calling them from the main function.

your program should display

number of traffic accidents in each region;

the average number of accidents last year and

the name of the region that has the smallest number of trafiic accident

input validation not accepted an accident number that is less than 0

Answer 1

PROGRAM CODE (C++)

#include <iostream>
using namespace std;

// A struct Region which stores region name and number of accidents in it

struct Region{
   string name;
   int trafficAccidents;
};

// A function getNumAccidents which takes name of region as parameter

int getNumAccidents(string region) {
  
   // Ask user for traffic accidents in that region during last year
  
   int numAcc;
  
   cout << "Enter number of traffic accidents reported in " << region << " region during last year: ";
   cin >> numAcc;
  
   // Validating that number of accidents must not be less than 0
  
   if(numAcc < 0)
       numAcc = 0;
      
   // return that number of accidents
  
   return numAcc;          
}

// A function that will find the lowest region (where number of accidents are lowest) and print its name

void findLowest(Region regions[]) {
  
   // Finding the smallest region
  
   int lowest = regions[0].trafficAccidents;
   int index = 0;   // Store index of that region
  
   // Iterating through all regions
  
   for (int i=0; i<5; i++) {
      
       if(regions[i].trafficAccidents < lowest) {   // finding one which has lowest number of accidents
          
           lowest = regions[i].trafficAccidents;
           index = i;
       }
   }
  
   // Printing name and accident figure of that region
  
   cout << "**** Region with Smallest number of Traffic Accidents****" << endl;
   cout << "Name of Region: " << regions[index].name << endl;
   cout << "Number of Traffic Accidents: " << regions[index].trafficAccidents << endl;
}

// A function that will calculate average number of accidents in all five regions

int calcAverage(Region regions[]) {
      
   int totalAcc = 0;
  
   for (int i=0; i<5; i++) {
      
       totalAcc += regions[i].trafficAccidents;
   }
  
   return totalAcc / 5;
}

int main() {
  
   // An array of Region to store five regions
  
   Region regions[5] = {{"north", 0}, {"south", 0}, {"east", 0}, {"west", 0}, {"central", 0}};
  
  
   // Iterating over regions array and calling getNumAccidents to store number of accidents in each region last year
  
   cout << endl;
   for (int i=0; i<5; i++) {
      
       int num = getNumAccidents(regions[i].name);
       regions[i].trafficAccidents = num;
   }
  
   // Now showing number of accidents in each region
  
   cout << endl;
  
   cout << "Region\tNumber of Traffic Accidents" << endl;
  
   for (int i=0; i<5; i++) {
      
       cout << regions[i].name << "\t" << regions[i].trafficAccidents << endl;
   }
  
   // Calling findLowest function to print lowest region
  
   cout << endl;
   findLowest(regions);
  
   // Calling calcAverage to calculate average number of accidents
  
   cout << endl;
   cout << "The average number of accidents last year: " << calcAverage(regions) << endl;
  
   return 0;
}

SAMPLE OUTPUT

C:\Users\Dell OneDrive\Desktop\CPP July 2020\trafficAccidents.exe Enter number of traffic accidents reported in north region during last year: 20 Enter number of traffic accidents reported in south region during last year: 30 Enter number of traffic accidents reported in east region during last year: 10 Enter number of traffic accidents reported in west region during last year: 15 Enter number of traffic accidents reported in central region during last year: 5 Region Number of Traffic Accidents north 20 south 30 10 west 15 central 5 **** Region with smallest number of Traffic Accidents**** Name of Region: central Number of Traffic Accidents: 5 The average number of accidents last year: 16 east Process exited after 11.63 seconds with return value o Press any key to continue

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