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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#include <bits/stdc++.h>
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using namespace std;
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int t, n, m, k, c, l;
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vector<int> ans;
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int main() {
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cin >> t;
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while (t--) {
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c = 1;
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cin >> n >> m >> k;
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if (n * m % k != 0) {
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cout << "NO" << endl;
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} else {
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cout << "YES" << endl;
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for (int i = 1; i <= n; i++) {
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ans.clear();
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if (i & 1) {
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for (int j = 1; j <= m; j++) {
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if (!--c) {
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l++;
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c = k;
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}
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ans.push_back(l);
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}
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} else {
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for (int j = m; j >= 1; j--) {
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if (!--c) {
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l++;
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c = k;
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}
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ans.insert(ans.begin(), l);
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}
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}
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for (auto i : ans) {
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cout << i << ' ';
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}
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cout << endl;
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}
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}
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}
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return 0;
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}
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