Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Program to make a histogram of an array in C++
In this tutorial, we will be discussing a program to make a histogram by the data given inside an array.
For this, we will be provided with integer values inside an array. Our task is to plot a histogram keeping the value of both coordinates x and y equal to the value provided in the array.
Example
#include <bits/stdc++.h>
using namespace std;
void make_histogram(int arr[], int n){
int maxEle = *max_element(arr, arr + n);
for (int i = maxEle; i >= 0; i--) {
cout.width(2);
cout << right << i << " | ";
for (int j = 0; j < n; j++) {
if (arr[j] >= i)
cout << " x ";
else
cout << " ";
}
cout << "\n";
}
for (int i = 0; i < n + 3; i++)
cout << "---";
cout << "\n";
cout << " ";
for (int i = 0; i < n; i++) {
cout.width(2);
cout << right << arr[i] << " ";
}
}
int main() {
int arr[10] = { 10, 9, 12, 4, 5, 2,
8, 5, 3, 1 };
int n = sizeof(arr) / sizeof(arr[0]);
make_histogram(arr, n);
return 0;
}Output
12 | x 11 | x 10 | x x 9 | x x x 8 | x x x x 7 | x x x x 6 | x x x x 5 | x x x x x x 4 | x x x x x x x 3 | x x x x x x x x 2 | x x x x x x x x x 1 | x x x x x x x x x x 0 | x x x x x x x x x x --------------------------------------- 10 9 12 4 5 2 8 5 3 1
Updated on: 19-Dec-2019
2K+ Views
Advertisements