From 518eedbb750ea1eb305043aed3329964633a043a Mon Sep 17 00:00:00 2001 From: Sudesh1122 Date: Thu, 1 Oct 2020 17:35:14 +0530 Subject: [PATCH] add 1192 (cpp) --- README.md | 1 + cpp/_1192.cpp | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) create mode 100644 cpp/_1192.cpp diff --git a/README.md b/README.md index 400b1e9322..94d2a09fc7 100644 --- a/README.md +++ b/README.md @@ -185,6 +185,7 @@ _If you like this project, please leave me a star._ ★ |1200|[Minimum Absolute Difference](https://leetcode.com/problems/minimum-absolute-difference/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1200.java) | [:tv:](https://www.youtube.com/watch?v=mH1aEjOEjcQ)|Easy|| |1198|[Find Smallest Common Element in All Rows](https://leetcode.com/problems/find-smallest-common-element-in-all-rows/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1198.java) | [:tv:](https://www.youtube.com/watch?v=RMiofZrTmWo)|Easy|| |1196|[How Many Apples Can You Put into the Basket](https://leetcode.com/problems/how-many-apples-can-you-put-into-the-basket/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1196.java) | [:tv:](https://www.youtube.com/watch?v=UelshlMQNJM)|Easy|| +|1192|[Critical Connections in a Network](https://leetcode.com/problems/critical-connections-in-a-network/)|[C++](../master/cpp/_1192.cpp) | |Hard|DFS| |1190|[Reverse Substrings Between Each Pair of Parentheses](https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1190.java) | |Medium|Stack| |1189|[Maximum Number of Balloons](https://leetcode.com/problems/maximum-number-of-balloons/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1189.java) |[:tv:](https://youtu.be/LGgMZC0vj5s) |Easy|| |1185|[Day of the Week](https://leetcode.com/problems/day-of-the-week/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1185.java) | |Easy|| diff --git a/cpp/_1192.cpp b/cpp/_1192.cpp new file mode 100644 index 0000000000..150f7d12b7 --- /dev/null +++ b/cpp/_1192.cpp @@ -0,0 +1,40 @@ +// 1192. Critical Connections in a Network + + +class Solution { +public: + vector rank,lowest; + vector> graph,res; + + int solve(int node,int depth,int parent){ + if(rank[node]>=0) + return rank[node]; + rank[node]=depth; + int ans = depth; + for(auto neighbour:graph[node]){ + if(parent==neighbour) + continue; + int back_depth = solve(neighbour,depth+1,node); + if(back_depth>depth){ + res.push_back({node,neighbour}); + } + ans = min(ans,back_depth); + } + rank[node]=ans; + return ans; + } + + vector> criticalConnections(int n, vector>& connections) { + rank = vector(n,-2); + lowest=vector(n,INT_MAX); + graph = vector>(n); + + for(auto i:connections){ + graph[i[0]].push_back(i[1]); + graph[i[1]].push_back(i[0]); + } + + solve(0,0,-1); + return res; + } +}; pFad - Phonifier reborn

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