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子序列模板
模板1:一维dp(最长递增子序列)
int n = array.length;
int[] dp = new int[n];
for (int i = 1; i < n; i++) {
for (int j = 0; j < i; j++) {
dp[i] = 最值(dp[i], dp[j] + ...)
}
}
模板2:二维dp(最长公共子序列、最长回文子序列)
int n = arr.length;
int[][] dp = new dp[n][n];
for (int i = 0; i < n; i++) {
for (int j = 1; j < n; j++) {
if (arr[i] == arr[j])
dp[i][j] = dp[i][j] + ...
else
dp[i][j] = 最值(...)
}
}