Adding submissions

Author: jhonber

codeforces/Codeforces Round #242 (Div. 2)/A.cpp

@@ -0,0 +1,52 @@
+// http://codeforces.com/contest/424/problem/A
+
+#include<bits/stdc++.h>
+using namespace std;
+#define __ ios_base::sync_with_stdio(0); cin.tie(0);
+#define endl '\n'
+#define foreach(it, x) for (__typeof (x).begin() it = (x).begin(); it != (x).end(); ++it)
+#define all(x) x.begin(),x.end()
+#define D(x) cout << #x " = " << (x) << endl;
+
+template <class T> string toStr(const T &x)
+{ stringstream s; s << x; return s.str(); }
+
+template <class T> int toInt(const T &x)
+{ stringstream s; s << x; int r; s >> r; return r; }
+
+int dx[8] = {-1,-1,-1,0,1,1, 1, 0};
+int dy[8] = {-1, 0, 1,1,1,0,-1,-1};
+
+int main() {
+  int n;
+  cin >> n;
+
+  string s;
+  cin >> s;
+
+  int up = 0;
+  for (int i = 0; i < n; ++i) if (s[i] == 'X') up ++;
+
+  int ans;
+
+  if (up >= n / 2) {
+    int cnt = up - (n / 2);
+    ans = cnt;
+    for (int i = 0; cnt > 0 ; i++) if (s[i] == 'X') {
+      s[i] = 'x';
+      cnt --;
+    }
+  }
+  else {
+    int cnt = (n / 2) - up;
+    ans = cnt;
+    for (int i = 0; cnt > 0 ; i++) if (s[i] == 'x') {
+      s[i] = 'X';
+      cnt --;
+    }
+  }
+
+  cout << ans << endl << s;
+
+  return 0;
+}

codeforces/data.db

@@ -646,4 +646,5 @@
 12997400
 12998226
 13001578
-13002330
+13002330
+13002434