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5834: K-5-8-1 杨辉三角
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
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Submit:6
Solved:6
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Description
输入正整数n,输出杨辉三角形的前n行。例如,n=5时,杨辉三角形如下:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
Input
一行一个正整数n,1<=n<=20
Output
共n行,第 i行包含 i 个正整数,之间用一个空格隔开
Sample Input
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5
Sample Output
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1 1 1 1 2 1 1 3 3 1 1 4 6 4 1
Source/Category
二维数组
信息学奥赛课课通
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