Use big_string in checkpoint

Author: adamant-pwn

cp-algo/util/big_alloc.hpp

@@ -65,6 +65,8 @@ namespace cp_algo {
     using big_vector = std::vector<T, big_alloc<T>>;
     template<typename T>
     using big_basic_string = std::basic_string<T, std::char_traits<T>, big_alloc<T>>;
+    template<typename T>
+    using big_deque = std::deque<T, big_alloc<T>>;
     using big_string = big_basic_string<char>;
 }
 #endif // CP_ALGO_UTIL_big_alloc_HPP

cp-algo/util/checkpoint.hpp

@@ -1,18 +1,19 @@
 #ifndef CP_ALGO_UTIL_CHECKPOINT_HPP
 #define CP_ALGO_UTIL_CHECKPOINT_HPP
+#include "../util/big_alloc.hpp"
 #include <iostream>
 #include <chrono>
 #include <string>
 #include <map>
 namespace cp_algo {
 #ifdef CP_ALGO_CHECKPOINT
-    std::map<std::string, double> checkpoints;
+    std::map<big_string, double> checkpoints;
     double last;
 #endif
     template<bool final = false>
     void checkpoint([[maybe_unused]] auto const& _msg) {
 #ifdef CP_ALGO_CHECKPOINT
-        std::string msg = _msg;
+        big_string msg = _msg;
         double now = (double)clock() / CLOCKS_PER_SEC;
         double delta = now - last;
         last = now;