some dp problems

CSES - CSES Problem Set/Dice_Combinations.cpp

@@ -0,0 +1,22 @@
+//  Dice Combinations
+
+#include<bits/stdc++.h>
+
+using namespace std;
+using ll = long long;
+
+const ll N = 1e6;
+const ll MOD = 1e9 + 7;
+
+ll ways[N + 1];
+
+int main() {
+    ll n; cin >> n;
+    ways[0] = 1;
+    for (ll i = 1; i <= n; i++) {
+        for (ll j = 1; j <= 6 && j <= i; j++) {
+            ways[i] = (ways[i] + (ways[i - j])) % MOD;
+        }
+    }
+    cout << ways[n];
+}