update

P1020/P1020.cpp

@@ -1,16 +1,35 @@
+#include <algorithm>
 #include <iostream>
 
-using std::cin, std::cout, std::iostream;
+using std::cin, std::cout, std::iostream, std::max, std::for_each_n;
 
 constexpr size_t MAX_N {(size_t)5e4+5};
-int n, arr[MAX_N], len[MAX_N], ans1, ans2;
+int arr[MAX_N], len[MAX_N], ans1, ans2{1}, n, last_max;
 
 int main(){
     iostream::sync_with_stdio(false), cin.tie(0), cout.tie(0);
 
-    cin>>n;
-    for(size_t i=0;i<n;i++){
-        cin>>arr[i];
-    }
+    while(cin>>arr[n++]);
 
+    for(int i=0;i<n;i++){
+        for(int j=i-1;j>=0;j--){ //j<i
+            if(arr[j]>=arr[i] && len[i]<len[j]+1){
+                len[i] = len[j] + 1;
+            }
+        }
+    }
+    for_each_n(len,n,[](decltype(*len) e){
+        ans1 = std::max(ans1,e);
+    });
+    last_max = arr[0];
+    for_each_n(arr+1,n,[](decltype(*arr) e){
+        if(last_max < e){
+            ans2++;
+            last_max = e;
+        }else{
+            last_max = e;
+        }
+    });
+
+    cout<<ans1<<'\n'<<ans2<<'\n';
 }