Create 2037A-Twice.cpp

DionysiosB · Nov 17, 2024 · 64f59a9 · 64f59a9
1 parent 8b10999
commit 64f59a9
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/2037A-Twice.cpp b/2037A-Twice.cpp
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+#include <cstdio>
+#include <map>
+
+int main(){
+
+    long t; scanf("%ld", &t);
+    while(t--){
+        long n; scanf("%ld", &n);
+        std::map<long, long> m;
+        for(long p = 0; p < n; p++){
+            long x; scanf("%ld", &x);
+            ++m[x];
+        }
+
+        long score(0);
+        for(std::map<long, long>::iterator it = m.begin(); it != m.end(); it++){score += (it->second) / 2;}
+        printf("%ld\n", score);
+    }
+
+}