initial commit

1829C Mr. Perfectly Fine/1829C.cpp

@@ -0,0 +1,36 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+void solve()
+{
+    int n,t1,t2,t;
+    cin>>n;
+    t=t1=t2=INT_MAX;
+    for(int i=0; i<n; ++i)
+    {
+        int x;
+        string s;
+        cin>>x>>s;
+        if(s[0]=='1') t1=min(x,t1);
+        if(s[1]=='1') t2=min(x,t2);
+        if(s[0]=='1' && s[1]=='1') t=min(x,t);
+    }
+    if(t1==INT_MAX || t2==INT_MAX) cout<<"-1"<<endl;
+    else 
+    {
+        if(t<t1+t2) cout<<t<<endl;
+        else cout<<t1+t2<<endl;
+    }
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    cin >> TC;
+    cin.ignore();
+    while (TC--) solve();
+}

1829D Gold Rush/1829D.cpp

@@ -0,0 +1,30 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+bool check(int n,int m)
+{
+    if(n==m) return true;
+    else if(n%3!=0 || n<m) return false;
+    else return (check (n/3,m) || check(2*n/3,m)); 
+}
+
+void solve()
+{
+    int n,m;
+    cin>>n>>m;
+    bool p=check(n,m);
+    if(p) cout<<"YES"<<endl;
+    else cout<<"NO"<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    cin >> TC;
+    cin.ignore();
+    while (TC--) solve();
+}