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@@ -0,0 +1,29 @@
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+#include<bits/stdc++.h>
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+using namespace std;
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+int main()
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+{
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+ int T;
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+ cin >> T;
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+ while (T--)
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+ {
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+ int n;
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+ cin >> n;
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+ vector < vector < int >> v(n + 1, vector < int > (n + 1, 0));
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+ for (int i = 1; i <= n; i++) {
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+ for (int j = 1; j <= i; j++) {
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+ cin >> v[i][j];
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+ }
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+ }
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+ vector < vector < int >> dp(n + 1, vector < int > (n + 1, 0));
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+ for (int i = 1; i <= n; i++) {
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+ dp[n][i] = v[n][i];
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+ }
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+ for (int i = n - 1; i >= 1; i--) {
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+ for (int j = 1; j <= i; j++) {
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+ dp[i][j] = max(dp[i + 1][j], dp[i + 1][j + 1]) + v[i][j];
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+ }
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+ }
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+ cout << dp[1][1] << endl;
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+ }
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+ return 0;
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+}
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