initial commit

189A Cut Ribbon/189A.cpp

@@ -0,0 +1,93 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int n, a, b, c;
+    cin>>n;
+    vector<int>v;
+    for(int i=0; i<3; ++i)
+    {
+        int x;
+        cin>>x;
+        v.push_back(x);
+    }
+    sort(v.begin(),v.end());
+    vector<int>cts;
+    int temp,ct,tct;
+    if(n%v[0]==0)
+    {
+        cts.push_back(n/v[0]);
+    }
+    else
+    {
+        temp=n;
+        ct=0;
+        while(temp>0)
+        {
+            temp=temp-v[1];
+            ct++;
+            if(temp%v[0]==0 && temp>=v[0])
+            {
+                ct=ct+temp/v[0];
+                temp=temp%v[0];
+                break;
+            }
+        }
+        if(temp==0)
+            cts.push_back(ct);
+
+        temp=n;
+        ct=0;
+        while(temp>0)
+        {
+            temp=temp-v[2];
+            ct++;
+            if(temp%v[0]==0 && temp>=v[0])
+            {
+                ct=ct+temp/v[0];
+                temp=temp%v[0];
+                break;
+            }
+        }
+        if(temp==0)
+            cts.push_back(ct);
+
+        ct=0;
+        while(n>0)
+        {
+            n=n-v[2];
+            ct++;
+            temp=n; 
+            tct=ct;
+            while(temp>0)
+            {
+                temp=temp-v[1];
+                tct++;
+                if(temp%v[0]==0 && temp>=v[0])
+                {
+                    tct=tct+temp/v[0];
+                    temp=temp%v[0];
+                    break;
+                }
+            }
+            if(temp==0)
+                cts.push_back(tct);
+        }
+    }
+    int ans=*max_element(cts.begin(),cts.end());
+    cout<<ans<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    //cin >> TC;
+    //cin.ignore();
+    while (TC--) solve();
+}