D - Reality Show

https://codeforces.com/contest/1322/submission/190465670

Codeforces/1322/D/D.cpp

@@ -0,0 +1,51 @@
+#include <iostream>
+#include <cstring>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 2005;
+
+int n, m, l[N], s[N], c[N << 1], f[N << 1][N];
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n >> m;
+
+    for (int i = 1; i <= n; i++) {
+        cin >> l[i];
+    }
+
+    for (int i = 1; i <= n; i++) {
+        cin >> s[i];
+    }
+
+    for (int i = 1; i <= n + m; i++) {
+        cin >> c[i];
+    }
+
+    memset(f, 0xc0, sizeof(f));
+
+    for (int i = 1; i <= n + m; i++) {
+        f[i][0] = 0;
+    }
+
+    for (int i = n; i; i--) {
+        for (int j = n; j; j--) {
+            f[l[i]][j] = std::max(f[l[i]][j], f[l[i]][j - 1] + c[l[i]] - s[i]);
+        }
+
+        for (int j = l[i]; j <= n + m; j++) {
+            for (int k = 0; k <= (n >> (j - l[i])); k++) {
+                f[j + 1][k >> 1] = std::max(f[j + 1][k >> 1], f[j][k] + (k >> 1) * c[j + 1]);
+            }
+        }
+    }
+
+    cout << f[n + m][0] << endl;
+
+    return 0;
+}