I really need to change all the int types in this program

inc/Instance.h

@@ -5,9 +5,9 @@
 class Instance
 {
 public:
-	uint64_t num_of_cols;
-	uint64_t num_of_rows;
-	uint64_t map_size;
+	int num_of_cols;
+	int num_of_rows;
+	int map_size;
 
 	// enum valid_moves_t { NORTH, EAST, SOUTH, WEST, WAIT_MOVE, MOVE_COUNT };  // MOVE_COUNT is the enum's size
 
@@ -55,13 +55,13 @@ class Instance
 	{
 		assert(loc >= 0 && loc < map_size && !my_map[loc]);
 		int degree = 0;
-		if (0 <= loc - num_of_cols && !my_map[loc - num_of_cols])
+		if (0 <= (loc - num_of_cols) && !my_map[loc - num_of_cols])
 			degree++;
-		if (loc + num_of_cols < map_size && !my_map[loc + num_of_cols])
+		if ((loc + num_of_cols) < map_size && !my_map[loc + num_of_cols])
 			degree++;
-		if (loc % num_of_cols > 0 && !my_map[loc - 1])
+		if ((loc % num_of_cols) > 0 && !my_map[loc - 1])
 			degree++;
-		if (loc % num_of_cols < num_of_cols - 1 && !my_map[loc + 1])
+		if ((loc % num_of_cols) < (num_of_cols - 1) && !my_map[loc + 1])
 			degree++;
 		return degree;
 	}

src/LNS.cpp

@@ -45,7 +45,7 @@ LNS::LNS(const Instance &instance, double time_limit, const string &init_algo_na
 bool LNS::run()
 {
     // only for statistic analysis, and thus is not included in runtime
-    memory_pool.init(instance.map_size * (planning_horizon + 1));
+    memory_pool.init(static_cast<uint64_t>(instance.map_size) * (static_cast<uint64_t>(planning_horizon) + 1));
     sipp_intervals = SIPPIntervals(instance.map_size);
 
     sum_of_distances = 0;