diff --git a/Dynamic_Programming/2463.Minimum-Total-Distance-Traveled/2463.Minimum-Total-Distance-Traveled.cpp b/Dynamic_Programming/2463.Minimum-Total-Distance-Traveled/2463.Minimum-Total-Distance-Traveled.cpp
new file mode 100644
index 000000000..5670539fd
--- /dev/null
+++ b/Dynamic_Programming/2463.Minimum-Total-Distance-Traveled/2463.Minimum-Total-Distance-Traveled.cpp
@@ -0,0 +1,44 @@
+using LL = long long;
+class Solution {
+ LL dp[101][101];
+ LL dist[101][101][101];
+public:
+ long long minimumTotalDistance(vector<int>& robot, vector<vector<int>>& factory) 
+ {
+ int m = robot.size();
+ int n = factory.size();
+ 
+ sort(robot.begin(), robot.end());
+ sort(factory.begin(), factory.end());
+ 
+ for (int i=0; i<n; i++) + for (int j=0; j<m; j++) + { + LL sum = 0; + for (int k=j; k<m; k++) + { + sum += abs(factory[i][0]-robot[k]); + dist[i][j][k] = sum; + } + } + + dp[0][0] = 0; + for (int j=1; j<=m; j++) + { + if (j<=factory[0][1]) + dp[0][j] = dist[0][0][j-1]; + else + dp[0][j] = LLONG_MAX/2; + } + + for (int i=1; i<n; i++) + for (int j=1; j<=m; j++) + { + dp[i][j] = dp[i-1][j]; + for (int k=1; k<=min(j,factory[i][1]); k++) + dp[i][j] = min(dp[i][j], dp[i-1][j-k] + dist[i][j-k][j-1]); + } + + return dp[n-1][m]; + } +}; diff --git a/Readme.md b/Readme.md index 712df090b..00df457b6 100644 --- a/Readme.md +++ b/Readme.md @@ -738,6 +738,7 @@ [1335.Minimum-Difficulty-of-a-Job-Schedule](https://github.com/wisdompeak/LeetCode/tree/master/Dynamic_Programming/1335.Minimum-Difficulty-of-a-Job-Schedule) (M+) [1478.Allocate-Mailboxes](https://github.com/wisdompeak/LeetCode/tree/master/Dynamic_Programming/1478.Allocate-Mailboxes) (H) [1977.Number-of-Ways-to-Separate-Numbers](https://github.com/wisdompeak/LeetCode/tree/master/Dynamic_Programming/1977.Number-of-Ways-to-Separate-Numbers) (H) +[2463.Minimum-Total-Distance-Traveled](https://github.com/wisdompeak/LeetCode/tree/master/Dynamic_Programming/2463.Minimum-Total-Distance-Traveled) (M+) * ``区间型 II`` [131.Palindrome-Partitioning](https://github.com/wisdompeak/LeetCode/tree/master/Dynamic_Programming/131.Palindrome-Partitioning) (M+) [312.Burst-Balloons](https://github.com/wisdompeak/LeetCode/tree/master/DFS/312.Burst-Balloons) (H-) diff --git a/Union_Find/924.Minimize-Malware-Spread/924.Minimize-Malware-Spread.cpp b/Union_Find/924.Minimize-Malware-Spread/924.Minimize-Malware-Spread.cpp index 8b1378917..238725052 100644 --- a/Union_Find/924.Minimize-Malware-Spread/924.Minimize-Malware-Spread.cpp +++ b/Union_Find/924.Minimize-Malware-Spread/924.Minimize-Malware-Spread.cpp @@ -1 +1,69 @@ - +class Solution { + unordered_map<int,int>Root;
+public:
+ int minMalwareSpread(vector<vector<int>>& graph, vector<int>& initial) 
+ {
+ int N = graph.size();
+ for (int i=0; i<n; i++) + Root[i] = i; + for (int i=0; i<n; i++) + for (int j=0; j<n; j++) + { + if (i==j) continue; + if (graph[i][j]==0) continue; + if (findRoot(i)!=findRoot(j)) + Union(i,j); + } + + unordered_map<int,vector<int>>Children;
+ for (int i=0; i<n; i++) + { + Root[i] = findRoot(i); + Children[Root[i]].push_back(i); + } + + set<int>Set(initial.begin(),initial.end());
+ 
+ int MaxGroup = 0; 
+ int result;
+ for (auto a:Children)
+ {
+ int count = 0;
+ int candidate;
+ for (auto b:a.second)
+ {
+ if (Set.find(b)!=Set.end())
+ {
+ count++;
+ candidate = b;
+ } 
+ if (count>1) break;
+ }
+ if (count==1 && (a.second.size()>MaxGroup &#124;&#124; a.second.size()==MaxGroup && candidate<result))
+ {
+ MaxGroup = a.second.size();
+ result = candidate;
+ }
+ }
+ 
+ if (MaxGroup!=0) return result;
+ else return *Set.begin();
+ }
+ 
+ int findRoot(int x)
+ {
+ if (Root[x]!=x)
+ Root[x] = findRoot(Root[x]);
+ return Root[x];
+ }
+ 
+ void Union(int x, int y)
+ {
+ x = Root[x];
+ y = Root[y];
+ if (x<y) 
+ Root[y] = x;
+ else
+ Root[x] = y;
+ }
+};
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