initial commit

34A Reconnaissance 2/34A.cpp

@@ -0,0 +1,41 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int n;
+    cin>>n;
+    vector<int>v;
+    for(int i=0; i<n; ++i)
+    {
+        int x;
+        cin>>x;
+        v.push_back(x);
+    }
+    int d=abs(v[0]-v[n-1]);
+    int x=1, y=n;
+    for(int i=1; i<n; i++)
+    {
+        int c=abs(v[i]-v[i-1]);
+        if(c<d)
+        {
+            d=c;
+            x=i;
+            y=i+1;
+        }
+    }
+    cout<<x<<" "<<y<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    // cin >> TC;
+    // cin.ignore();
+    while (TC--) solve();
+}

584A Olesya and Rodion/584A.cpp

@@ -0,0 +1,44 @@
+#include <bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+void solve()
+{
+    int n,t;
+    cin >> n >> t;
+    string s;
+    if (t == 10)
+    {
+        if(n==1)
+        {
+            cout<<-1<<endl;
+            return;
+        }
+        s += '1';
+        for (int i = 0; i < n - 1; i++)
+        {
+            s += '0';
+        }
+    }
+    else
+    {
+        char c=t+'0';
+        for (int i = 0; i < n; i++)
+        {
+            s += c;
+        }
+    }
+    cout << s << endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    // cin >> TC;
+    // cin.ignore();
+    while (TC--)
+        solve();
+}