Solved the first 6 problems of codechef Starters

1 files changed, 47 insertions, 0 deletions

diff --git a/codechef/EvenEqualOdd/main.cpp b/codechef/EvenEqualOdd/main.cpp
new file mode 100644
index 0000000..9880c37
--- /dev/null
+++ b/codechef/EvenEqualOdd/main.cpp
@@ -0,0 +1,47 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+	int tt;
+	cin >> tt;
+	while(tt--){
+    int n;
+    cin >> n;
+    vector<int> v(n * 2);
+    vector<int> even;
+    int ev = 0;
+    int odd = 0;
+    for(int &x : v) {
+      cin >> x;
+      ev += (x % 2 == 0);
+      odd += (x % 2 != 0);
+      if(x % 2 == 0) {
+        even.push_back(x);
+      }
+    }
+    vector<int> op;
+    for(int i = 0; i < even.size(); i++) {
+      int count = 1;
+      while((even[i] / 2 % 2) != 1) {
+        count++;
+        even[i] /= 2;
+      }
+      op.push_back(count);
+    }
+    sort(op.begin(), op.end());
+    if(ev == odd) {
+      cout << 0 << endl;
+    } else if(ev > odd){
+      int ans = 0;
+      for(int i = 0; i < (ev - odd) / 2; i++) {
+        ans += op[i];
+      }
+      cout << ans << endl;
+    } else {
+      cout << abs(ev - odd) / 2 << endl;
+    }
+	}
+}