Edu Codeforces round 97

Author: azecoder

Codeforces/1437A.cpp

@@ -0,0 +1,30 @@
+    #include <bits/stdc++.h>
+     
+    #define MX 1e4+5
+     
+    using namespace std;
+     
+    typedef pair<int, int> pii;
+    typedef vector<int> vi;
+    typedef vector<pii> vii;
+     
+     
+    void test_case() {
+    	
+    	int x, y;
+    	cin >> x >> y;
+    	cout << (2 * x > y ? "YES\n" : "NO\n");
+    }
+     
+     
+    int main() {
+    	
+    	int T;
+    	cin >> T;
+    	
+    	while(T--) {
+    		test_case();
+    	}
+     
+    	return 0;
+    }

Codeforces/1437B.cpp

@@ -0,0 +1,38 @@
+#include <bits/stdc++.h>
+ 
+#define MX 1e4+5
+ 
+using namespace std;
+ 
+typedef pair<int, int> pii;
+typedef vector<int> vi;
+typedef vector<pii> vii;
+ 
+ 
+void test_case() {
+	
+	int n;
+	cin >> n;
+	
+	string s;
+	cin >> s;
+	
+	int cnt = 0;
+	for(int i = 0; i < n - 1; i++)
+		if(s[i] == s[i+1])
+			cnt++;
+	cout << (cnt + 1) / 2 << "\n";
+}
+ 
+ 
+int main() {
+	
+	int T;
+	cin >> T;
+	
+	while(T--) {
+		test_case();
+	}
+ 
+	return 0;
+}