Submission #1097922

#	Time	Username	Problem	Language	Result	Execution time	Memory
1097922		EkinOnal	Knapsack (NOI18_knapsack)	C++17	100 / 100	80 ms	37068 KiB

knapsack

//#pragma GCC optimize("O3,unroll-loops,Ofast")
//#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
 
#define MAX 100005
#define pb push_back
#define mp make_pair 
#define int long long
#define f first
#define s second
#define vi vector<int>
#define pii pair<int,int>
#define si set<int>
#define vpii vector<pair<int,int>> 
const int mod = 1e9+7;
const int INF = 1e18;
// myMap.begin()->first :  key
// myMap.begin()->second : value
 
int epow(int a,int b){int ans=1;while(b){if(b&1) ans*=a;a*=a;b>>=1;ans%=mod;a%=mod;}return ans%mod;}
int gcd(int a,int b) {if(a<b)swap(a,b);while(b){int tmp=b;b=a%b;a=tmp;}return a;}
int mul(long long a,long long b){return ((a%mod)*(b%mod))%mod;}
int sum(long long a,long long b){return ((a%mod)+(b%mod))%mod;}
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>ordered_set;
typedef
tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>ordered_multiset;


void solve(){
	int S,n; cin>>S>>n;

	map<int,vpii> mpp;
	for(int i=1;i<=n;i++){
		int a,b,c; cin>>a>>b>>c;
		mpp[b].pb({a,c});
	}

	int cesid=1;
	int dp[S+5][S+5]{};
	for(auto u : mpp){
		sort(u.s.begin(),u.s.end(),greater<pii>());
		for(int s=1;s<=S;s++){
			dp[cesid][s]=dp[cesid-1][s];
			int gelir=0,curr=0,now=1,gider=1;
			while(curr<u.s.size() && gider*u.f<=s){
				gelir+=u.s[curr].f;
				dp[cesid][s]=max(dp[cesid][s],dp[cesid-1][s-gider*u.f]+gelir);
				now++; gider++;
				if(now>u.s[curr].s) now=1,curr++;
			}

		}
		cesid++;
	}


	int mx=0;
	for(int i=1;i<=S;i++) mx=max(mx,dp[cesid-1][i]);
	cout<<mx<<endl;


	return;	 
}


int32_t main(/*int32_t argc, char* argv[]*/){
	ios_base::sync_with_stdio(0); cin.tie(0);
	// freopen("censor.in", "r", stdin);
	// freopen("censor.out", "w", stdout);		
	
	int t=1;
//	cin >> t;
	while (t--) solve();
 
	return 0;	 			
}
 
/*
int cesid=1;
	int dp[S+5][S+5]{};
	for(auto u : mpp){
		sort(u.s.begin(),u.s.end(),greater<pii>());
		for(int s=1;s<=S;s++){
			dp[cesid][s]=dp[cesid-1][s];
			int gelir=0,curr=0;
			while(curr<u.s.size() && (curr+1)*u.f<=s){
				gelir+=u.s[curr].f;
				int gider=(curr+1)*u.f;
				dp[cesid][s]=max(dp[cesid][s],dp[cesid-1][s-gider]+gelir);
				curr++;
			}

		}
		cesid++;
	}
	int mx=0;
	for(int i=1;i<=S;i++) mx=max(mx,dp[cesid-1][i]);
	cout<<mx<<endl;
*/

Compilation message (stderr)

knapsack.cpp: In function 'void solve()':
knapsack.cpp:49:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |    while(curr<u.s.size() && gider*u.f<=s){
      |          ~~~~^~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 27 / 27