Merge pull request #4178 from cpinitiative/problem-suggestion/cf-1775D

Problem Suggestion: Add "Friendly Spiders" to Silver - Additional Practice for USACO Silver

Author: SansPapyrus683

content/3_Silver/Conclusion.problems.json

@@ -202,6 +202,19 @@
         "site": "CF"
       }
     },
+    {
+      "uniqueId": "cf-1775D",
+      "name": "Friendly Spiders",
+      "url": "https://codeforces.com/contest/1775/problem/D",
+      "source": "CF",
+      "difficulty": "Normal",
+      "isStarred": false,
+      "tags": ["Number theory", "Graphs", "BFS", "shortest path"],
+      "solutionMetadata": {
+        "kind": "autogen-label-from-site",
+        "site": "CF"
+      }
+    },
     {
       "uniqueId": "cf-404C",
       "name": "Restore Graph",