#include <bits/stdc++.h> #define int long long using namespace std; signed main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int s, n; cin >> s >> n; vector<int> dp(s + 1, 0); for(int i = 0; i < n; i++) { int v, w, k; cin >> v >> w >> k; int maxx = min((s / w), k); for(int p = 1; maxx > 0; p <<= 1) { int dem = min(p, maxx); maxx -= dem; int W = dem * W; int val = dem * V; for(int w = s; w >= W; w--) dp[w] = max(dp[w], dp[w - W] + val); } } cout << *max_element(dp.begin(), dp.end()); return 0; }

knapsack.cpp: In function 'int main()':
knapsack.cpp:22:30: error: 'V' was not declared in this scope
   22 |             int val  = dem * V;
      |                              ^