Trianglur Design--找规律

水题直接贴代码吧

Code:

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;

int n;
int a[25];

int main() {
while(scanf("%d", &n) != EOF) {
for(int i = 1; i <= n; i++) {
a[i] = (2*(i-1)+1)%10;
for(int j = 1; j < i; j++) {
if(a[i+j-1] == 0) a[i-j] = a[i+j] = 9;
else a[i-j] = a[i+j] = a[i+j-1]-1;
}
for(int k = 1; k <= 2*(i-1)+1; k++)
printf("%d", a[k]);
printf("\n");
}
}
return 0;
}