import(life): Add algorithm experiment 5.

1 files changed, 31 insertions, 0 deletions

diff --git a/works/life/algorithm-experiment/5.2a.cpp b/works/life/algorithm-experiment/5.2a.cpp
new file mode 100644
index 0000000..f458a90
--- /dev/null
+++ b/works/life/algorithm-experiment/5.2a.cpp
@@ -0,0 +1,31 @@
+#include <iostream>
+#include <unordered_map>
+#include <vector>
+
+int main() {
+  std::vector<long long> votes;
+
+  long long v;
+  while (std::cin >> v) {
+    votes.push_back(v);
+  }
+
+  std::unordered_map<long long, long long> counts;
+  for (auto v : votes) {
+    counts[v]++;
+  }
+
+  long long max_count = 0;
+  long long max_id = 0;
+
+  for (auto it = counts.begin(); it != counts.end(); ++it) {
+    if (it->second > max_count) {
+      max_count = it->second;
+      max_id = it->first;
+    }
+  }
+
+  std::cout << max_id << std::endl;
+
+  return 0;
+}
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