程序在C ++中制作数组的直方图
在本教程中,我们将讨论一个程序,该程序通过数组内部给出的数据来制作直方图。
为此,我们将在数组内提供整数值。我们的任务是绘制直方图,使两个坐标x和y的值都等于数组中提供的值。
示例
#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;
}输出结果
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