func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename T>   void vout(T x) {     cout << x << endl;     exit(0);   }   int gcd(int a, int b) {     while (a && b) {       if (a > b)         a %= b;       else         b %= a;     }     return a + b;   }   const long long inf = -1e18;   const long long mod = 1e9;   long long dp[300][300], a[400];   int n, k, x;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cin >> n >> k >> x;     if (n / k > x) vout(-1);     for (int i = 1; i <= n; ++i) cin >> a[i];     for (int i = 0; i < 300; ++i) {       for (int j = 0; j < 300; ++j) dp[i][j] = inf;     }     dp[0][x] = 0;     for (int i = 1; i <= n; ++i) {       for (int j = 0; j < x; ++j) {         for (int t = max(0, i - k); t <= i; ++t) {           if (dp[t][j + 1] >= 0) dp[i][j] = max(dp[i][j], dp[t][j + 1] + a[i]);         }       }     }     long long ans = 0;     for (int i = n - k + 1; i <= n; ++i) ans = max(ans, dp[i][0]);     vout(ans);     return 0;   }   