new file: P17538.cpp
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#include <bits/stdc++.h>
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using namespace std;
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int t;
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int n; // 2000
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int main() {
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scanf("%d", &t);
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while (t--) {
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scanf("%d", &n);
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for (int i = 1; i <= n; ++i) {
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for (int j = 1; j <= n; ++j) {
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if (i == j) {
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printf("%d ", i);
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} else if (i % j == 0) {
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printf("%d ", j);
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} else if (j % i == 0) {
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printf("%d ", i);
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} else {
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printf("1 ");
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}
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}
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putchar('\n');
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}
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}
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return 0;
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}
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