C++ 程式設計,無表情圖案繪製
給定一個數字 n;任務是建立無表情圖案,最多可包含 n 行,並顯示結果。無表情圖案使用特殊字元建立,看起來像:“*_*”。
示例
Input-: n = 6 Output-:

Input-: n = 8 Output-:

演算法
Start Step 1-> In function print_stars(int i) Loop For j = 1 and j <= i and j++ Print “*” Step 2-> In function print_pattern(int rows) Loop For i = 1 and i <= rows and i++ Call function print_stars(i) Print “_” Call print_stars(rows - i + 1) Print “_” Call print_stars(rows - i + 1) Print ”_” Call print_stars(i) Print newline Step 3-> In function int main() Declare and set rows = 8 Call print_pattern(rows) Stop
示例
#include <bits/stdc++.h>
using namespace std;
//function to print stars
void print_stars(int i) {
for (int j = 1; j <= i; j++)
cout << "*";
}
void print_pattern(int rows) {
for (int i = 1; i <= rows; i++) {
print_stars(i);
cout << "_";
print_stars(rows - i + 1);
cout << "_";
print_stars(rows - i + 1);
cout << "_";
print_stars(i);
cout << endl;
}
}
int main() {
int rows = 8;
print_pattern(rows);
return 0;
}輸出

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