Started with Codeforces educational round 118, finished a and b

codeforces/educational_rounds/118/b.cpp

@@ -0,0 +1,39 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+void test_case(int tc){
+    int n;
+    cin >> n;
+
+    vector<int> seq(n);
+
+    for(int i = 0; i < n; ++i){
+        cin >> seq[i];
+    }
+
+    sort(seq.begin(), seq.end());
+
+    for(int i = 1; i < n / 2 + 1; ++i){
+        cout << seq[i] << " " << seq[0] << "\n";
+    }
+
+}
+
+
+
+int main(){
+    ios::sync_with_stdio(0);
+    cin.tie(0);
+
+    int t;
+    cin >> t;
+
+    for(int tc = 1; tc <= t; ++tc){
+        test_case(tc);
+    }
+
+    cout << flush;
+
+    return 0;
+}