Algorithms : add 03-algorithms_on_graphs 04-paths_in_graphs

7 files changed, 55 insertions, 0 deletions

diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/dijkstra.cpp b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/dijkstra.cpp
new file mode 100644
index 0000000..757a6c6
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/dijkstra.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include <vector>
+#include <queue>
+
+using std::vector;
+using std::queue;
+using std::pair;
+using std::priority_queue;
+
+int distance(vector<vector<int> > &adj, vector<vector<int> > &cost, int s, int t) {
+  //write your code her
+  return -1;
+}
+
+int main() {
+  int n, m;
+  std::cin >> n >> m;
+  vector<vector<int> > adj(n, vector<int>());
+  vector<vector<int> > cost(n, vector<int>());
+  for (int i = 0; i < m; i++) {
+    int x, y, w;
+    std::cin >> x >> y >> w;
+    adj[x - 1].push_back(y - 1);
+    cost[x - 1].push_back(w);
+  }
+  int s, t;
+  std::cin >> s >> t;
+  s--, t--;
+  std::cout << distance(adj, cost, s, t);
+}
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01 b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01
new file mode 100644
index 0000000..88e4967
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01
@@ -0,0 +1,6 @@
+4 4
+1 2 1
+4 1 2
+2 3 2
+1 3 5
+1 3
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01.a b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01.a
new file mode 100644
index 0000000..00750ed
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/01.a
@@ -0,0 +1 @@
+3
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02 b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02
new file mode 100644
index 0000000..99e01ee
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02
@@ -0,0 +1,11 @@
+5 9
+1 2 4
+1 3 2
+2 3 2
+3 2 1
+2 4 2
+3 5 4
+5 4 1
+2 5 3
+3 4 4
+1 5
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02.a b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02.a
new file mode 100644
index 0000000..1e8b314
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/02.a
@@ -0,0 +1 @@
+6
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03 b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03
new file mode 100644
index 0000000..0af6eeb
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03
@@ -0,0 +1,5 @@
+3 3
+1 2 7
+1 3 5
+2 3 2
+3 2
diff --git a/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03.a b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03.a
new file mode 100644
index 0000000..3a2e3f4
--- /dev/null
+++ b/03-algorithms_on_graphs/04-paths_in_graphs/01-dijkstra/tests/03.a
@@ -0,0 +1 @@
+-1