Leecode 300.最长递增子序列
题目地址:力扣(LeetCode)官网 - 全球极客挚爱的技术成长平台
题目类型:最长子序列
cpp
class Solution {
public:
int lengthOfLIS(vector<int>& nums) {
int n = nums.size();
// dp[i]代表到第i个元素时的最长子序列长度
vector<int> dp(n, 1);
int res = 1;
for (int i = 1; i < n; ++i) {
for (int j = 0; j < i; ++j) {
if (nums[i] > nums[j]) dp[i] = max(dp[i], dp[j] + 1);
}
res = max(res, dp[i]);
}
return res;
}
};
Leecode 674.最长连续递增序列
题目地址:力扣(LeetCode)官网 - 全球极客挚爱的技术成长平台
题目类型:最长子序列
cpp
class Solution {
public:
int findLengthOfLCIS(vector<int>& nums) {
int n = nums.size();
int res = 1, cur = 1;
for (int i = 1; i < n; ++i) {
if (nums[i] > nums[i - 1]) {
cur++;
res = max(cur, res);
}
else {
cur = 1;
}
}
return res;
}
};
Leecode 718.最长重复子数组
题目地址:力扣(LeetCode)官网 - 全球极客挚爱的技术成长平台
题目类型:最长子序列
cpp
class Solution {
public:
int findLength(vector<int>& nums1, vector<int>& nums2) {
int m = nums1.size(), n = nums2.size();
int result = 0;
vector<vector<int>> dp(m + 1, vector<int>(n + 1));
for (int i = 1; i <= m; ++i) {
for (int j = 1; j <= n; ++j) {
if (nums1[i - 1] == nums2[j - 1]) dp[i][j] = dp[i - 1][j - 1] + 1;
if (dp[i][j] > result) result = dp[i][j];
}
}
return result;
}
};