Migration to another compiler version and older cmake

2558/2558.cpp

@@ -2,6 +2,7 @@
 #include <cmath>
 #include <algorithm>
 #include <iostream>
+#include <cmath>
 
 void print(std::vector<int>& gifts) {
     for (auto gift : gifts)
@@ -16,7 +17,7 @@ namespace {
             std::sort(gifts.begin(), gifts.end());
     
             for (int i = 0; i < k; ++i) {
-                auto value = std::sqrtl(gifts[gifts.size() - 1]);
+                auto value = std::sqrt(gifts[gifts.size() - 1]);
                 if (value == 1)
                     continue;
                 auto it = std::upper_bound(gifts.begin(), gifts.end(), value);