Submission #791218

#TimeUsernameProblemLanguageResultExecution timeMemory
791218AmrTKnapsack (NOI18_knapsack)C++17
49 / 100
99 ms262144 KiB
#include <bits/stdc++.h> #define lop(i,a,b) for(ll i = a; i < b; i++) #define alop(i,v) for(auto &i: v) #define in(v) for(auto &i: v) cin >> i; #define ll long long #define endl "\n" #define pb push_back #define all(v) v.begin(),v.end() #define mem(dp, x) memset(dp, x, sizeof(dp)) #define F first #define S second using namespace std; ll mod = 2019; const ll N = 1e5; ll fpow(ll x, ll p){ if(p == 0) return 1; if(p == 1) return x % mod; ll result = 1; if((p & 1) == 1) result = x % mod, p--; ll h = fpow(x, (p >> 1)) % mod; result *= (h * h) % mod; return result % mod; } signed main() { int n, s; cin >> s >> n; vector<array<ll, 3>> v(n); // {value, weight, copies} vector<pair<ll, ll>> arr(1); alop(i, v){ in(i); ll temp = s / i[1] + 1; for(int j = 1; (j <= temp && j <= i[2]); j++) arr.pb({i[1], i[0]}); } n = arr.size() - 1; ll dp[n + 1][s + 1] = {}; for(int i = 1; i <= n; i++){ for(int j = 1; j <= s; j++){ dp[i][j] = dp[i - 1][j]; if(j - arr[i].first >= 0) dp[i][j] = max(dp[i][j], dp[i - 1][j - arr[i].first] + arr[i].second); } } cout << dp[n][s]; return 0; }
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