C++ 程序打印菱形
这是一个用于打印菱形的 C++ 程序。
算法
Begin Take the no of rows n means the dimension of the diamond shape as input. Declare the variables i, j and initialize space=1. Initialize space = n-1. Run for loop till n. Run for loop to print space. Decrease space. Run for loop to print stars. Now do the same thing in reverse order. Initialize space = 1. Run for loop till n. Run for loop to print space. Increase space. Run for loop to print stars. End
示例
#include<iostream> using namespace std; main() { int n, i, j, space=1; cout<<"Enter number of rows : "; cin>>n; space=n-1; for (i=1; i<=n; i++) { for(j=1; j<=space; j++) { cout<<" "; //print space. } space--; for(j=1; j<=(2*i-1); j++) { cout<<"*"; //print stars. } cout<<"\n"; } //in reverse order. space=1; for (i=1; i<=n; i++) { for(j=1; j<=space; j++) { cout<<" "; //print space. } space++; for(j=1; j<=(2*(n-i)-1); j++) { cout<<"*"; //print stars. } cout<<"\n"; } }
输出
Enter number of rows: 4 * *** ***** ******* ***** *** *
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