initial commit

1846A Rudolph and Cut the Rope/1846A.cpp

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+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int n;
+    cin>>n;
+    int ct=0;
+    for(int i=0; i<n; ++i)
+    {
+        int x,y;
+        cin>>x>>y;
+        if(x>y) 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();
+}

1851A Escalator Conversations/1851A.cpp

@@ -0,0 +1,36 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int n, m, k, H;
+    cin>>n>>m>>k>>H;
+    vector<int>v;
+    for(int i=0; i<n; ++i)
+    {
+        int x;
+        cin>>x;
+        v.push_back(x);
+    }
+    int ct=0;
+    for(int i=0; i<n; ++i)
+    {
+        int d=abs(H-v[i]);
+        if(d<=(m-1)*k && d%k==0 && v[i]!=H)
+            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();
+}