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답안 #1079797

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1079797 2024-08-29T01:53:39 Z trMatherz Feast (NOI19_feast) C++17
4 / 100
 1000 ms 26548 KB 
#include <iostream> //cin, cout

/*
#include <fstream>
std::ifstream cin ("ex.in");
std::ofstream cout ("ex.out");
*/




// includes
#include <cmath> 
#include <set>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include <array>
#include <algorithm>
#include <numeric>
#include <iomanip>
#include <unordered_set>
#include <stack>
#include <ext/pb_ds/assoc_container.hpp>
#include <random>
#include <chrono>
#include <bitset>
#include <complex>


//usings 
using namespace std;
using namespace __gnu_pbds;


// misc
#define ll long long
#define ld long double
#define pb push_back
#define pq priority_queue
#define ub upper_bound
#define lb lower_bound
template<typename T, typename U> bool emin(T &a, const U &b){ return b < a ? a = b, true : false; }
template<typename T, typename U> bool emax(T &a, const U &b){ return b > a ? a = b, true : false; }
typedef uint64_t hash_t;

// vectors
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define vpii vector<pair<int, int>>
#define vvpii vector<vector<pair<int, int>>>
#define vppipi vector<pair<int, pair<int, int>>>
#define vl vector<ll>
#define vvl vector<vl>
#define vvvl vector<vvl>
#define vpll vector<pair<ll, ll>>
#define vvpll vector<vpll>
#define vb vector<bool>
#define vvb vector<vb>
#define vs vector<string>
#define sz(x) (int)x.size()
#define rz resize
#define all(x) x.begin(), x.end()
#define vc vector<char>
#define vvc vector<vc>


// pairs
#define pii pair<int, int>
#define pll pair<ll, ll>
#define mp make_pair
#define f first
#define s second

// sets
#define si set<int>
#define sl set<ll>
#define ss set<string>
#define in insert
template <class T> using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

// maps
#define mii map<int, int>
#define mll map<ll, ll>

// loops
#define FR(x, z, y) for (int x = z; x < y; x++)
#define FRE(x, z, y) FR(x, z, y + 1)
#define F(x, y) FR(x, 0, y)
#define FE(x, y) F(x, y + 1)
#define A(x, y) for(auto &x : y)


vl a; 
int n, k;
pll plop(ll j) {
    vvpll dp(n + 1, vpll(2, {(ll) -1e12, (ll) -1e12}));
    dp[0][0] = {0, 0}; 
    F(i, n){ 
        dp[i + 1][0] = max(dp[i][0], dp[i][1]);
        dp[i + 1][1] = max(mp(dp[i][1].f + a[i], dp[i][1].s), mp(dp[i][0].f + a[i] - j, dp[i][0].s + 1)); 
    }
    return max(dp[n][0], dp[n][1]); 
}

int main(){
    cin >> n >> k; 
    a = vl(n); A(u, a) cin >> u;
    ll l = 0, r = (ll) 1e18 + 7; 
    while(l < r) {
        ll m = (l + r) / 2; 
        if(plop(m).s < k) r = m - 1; 
        else l = m; 
    }
    cout << plop(l).f + l * k; 
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 910 ms 25556 KB Output is correct
2 Correct 916 ms 26264 KB Output is correct
3 Correct 957 ms 26548 KB Output is correct
4 Correct 907 ms 26492 KB Output is correct
5 Correct 921 ms 26260 KB Output is correct
6 Correct 889 ms 25796 KB Output is correct
7 Correct 894 ms 25560 KB Output is correct
8 Correct 887 ms 26280 KB Output is correct
9 Correct 888 ms 25692 KB Output is correct
10 Correct 886 ms 26228 KB Output is correct

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1016 ms 24536 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1040 ms 26276 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Execution timed out 1096 ms 348 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Execution timed out 1096 ms 348 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Execution timed out 1096 ms 348 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 910 ms 25556 KB Output is correct
2 Correct 916 ms 26264 KB Output is correct
3 Correct 957 ms 26548 KB Output is correct
4 Correct 907 ms 26492 KB Output is correct
5 Correct 921 ms 26260 KB Output is correct
6 Correct 889 ms 25796 KB Output is correct
7 Correct 894 ms 25560 KB Output is correct
8 Correct 887 ms 26280 KB Output is correct
9 Correct 888 ms 25692 KB Output is correct
10 Correct 886 ms 26228 KB Output is correct
11 Execution timed out 1016 ms 24536 KB Time limit exceeded
12 Halted 0 ms 0 KB -