initial commit

551.cpp

@@ -0,0 +1,31 @@
+#include <string>
+#include <iostream>
+using namespace std;
+
+class Solution
+{
+public:
+	bool checkRecord(string s)
+	{
+		int absent_count = 0;
+		for (int i = 0; i < s.length(); i++)
+		{
+			absent_count += (s[i] == 'A');
+			if (absent_count > 1)
+				return false;
+		}
+		for (int i = 0; i < (int)s.length() - 2; i++)
+		{
+			// cout<<i<<" "<<s[i]<<endl;
+			if (s[i] == 'A' && s[i] == s[i + 1] && s[i + 1] == s[i + 2])
+				return false;
+		}
+		return true;
+	}
+};
+
+int main() {
+	Solution s;
+	cout<<s.checkRecord("A")<<endl;
+	return 0;
+}

888.cpp

@@ -0,0 +1,42 @@
+#include <vector>
+#include <iostream>
+
+using namespace std;
+
+class Solution
+{
+public:
+	int sum(vector<int> &A)
+	{
+		int sum = 0;
+		for (int i = 0; i < A.size(); i++)
+			sum += A[i];
+		return sum;
+	}
+
+	vector<int> fairCandySwap(vector<int> &A, vector<int> &B)
+	{
+		int diff = (sum(A) - sum(B))/2;
+		cout<<diff<<endl;
+		for (int i = 0; i < A.size(); i++)
+			for (int j = 0; j < B.size(); j++)
+				if ((A[i] - B[j]) == diff)
+					return vector<int>{A[i], B[j]};
+		return vector<int>{0, 0};
+	}
+};
+
+void outputVector(vector<int> A)
+{
+	for (int i = 0; i < A.size(); i++)
+		cout<<A[i]<<" ";
+	cout<<endl;
+}
+
+int main() {
+	vector<int> A = {2};
+	vector<int> B = {1, 3};
+	Solution solution = Solution();
+	outputVector(solution.fairCandySwap(A, B));
+	return 0;
+}

makefile

@@ -0,0 +1,5 @@
+CXX = g++
+#ls -d * | entr sh -c "make main && ./main"
+
+%: %.cpp
+	$(CXX) -o $@ $<