Submission #869902

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
869902	2023-11-06 08:01:05	cuman	Knapsack (NOI18_knapsack)	C++14	100 / 100	110 ms	3408 KiB

knapsack

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#include <bits/stdc++.h>
using namespace std;
#define between(l,x,r) ((l) <= (x) && (x) <= (r))
#define len(v) (i64((v).size()))
using i64 = long long;
const i64 MaxN = 1e5;
const i64 MaxS = 2e3;
i64 S, N;
array<i64,3> VWK[MaxN];
vector<i64> VByWeight[MaxS+1];
// (V, W)
vector<pair<i64,i64>> flatten;
i64 DPi[MaxS + 1], DPiplusone[MaxS + 1];
signed main() {
  fill(VByWeight, VByWeight + MaxS + 1, vector<i64>(0));
  cin >> S >> N;
  for (i64 i = 0; i < N; i++) cin >> VWK[i][0] >> VWK[i][1] >> VWK[i][2];
  sort(VWK, VWK + N, greater<array<i64,3>>());
  for (i64 i = 0; i < N; i++) {
    i64 v = VWK[i][0], w = VWK[i][1], k = VWK[i][2];
    i64 timesToAdd = min(k, S/w - len(VByWeight[w]));
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 27 / 27