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24 lines
569 B
24 lines
569 B
#include<bits/stdc++.h>
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using namespace std;
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int a[10][10];
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int main() {
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int i, j, n, count;
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memset(a, 0, sizeof(a));
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scanf("%d", &n);
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count = a[i = 1][j = n] = 1;//赋初值，方向为：右->左
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while(count < n*n) {
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while(i<n && !a[i+1][j]) a[++i][j] = ++count;//下
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while(j>1 && !a[i][j-1]) a[i][--j] = ++count;//左
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while(i>1 && !a[i-1][j]) a[--i][j] = ++count;//上
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while(j<n && !a[i][j+1]) a[i][++j] = ++count;//右
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}
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for(i = 1; i <= n; i++)
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for(j = 1; j <= n; j++) {
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if(j == n) printf("%3d\n", a[i][j]);
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else printf("%3d", a[i][j]);
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}
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return 0;
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}
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