initial commit

1311A Add Odd or Subtract Even/1311A.cpp

@@ -0,0 +1,55 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int a,b;
+    cin>>a>>b;
+    int ct=0;
+    while(a!=b)
+    {
+        if(a==b) break;
+        else if(a>b)
+        {
+            int d=a-b;
+            if(d%2==0)
+            {
+                a=a-d;
+                ct++;
+            }
+            else
+            {
+                a=a-d-1;
+                ct++;
+            }
+        }
+        else
+        {
+            int d=b-a;
+            if(d%2!=0)
+            {
+                a=a+d;
+                ct++;
+            }
+            else
+            {
+                a=a+d-1;
+                ct++;
+            }
+        }
+    }
+    cout<<ct<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    cin >> TC;
+    cin.ignore();
+    while (TC--) solve();
+}