oj.uz

Submission #990698

# Submission time Handle Problem Language Result Execution time Memory
990698 2024-05-31T04:10:02 Z whatthemomooofun1729 Art Exhibition (JOI18_art) C++14
100 / 100
 129 ms 29124 KB 
#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#include <stack>
#include <map>
#include <queue>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cstring>
#include <cmath>
#include <functional>
#include <cassert>
#include <iomanip>
#include <numeric>
#include <bitset>
#include <sstream>
#include <chrono>
#include <random>

#define ff first
#define ss second
#define PB push_back
#define sz(x) int(x.size())
#define rsz resize
#define fch(xxx, yyy) for (auto xxx : yyy) // abusive notation
#define all(x) (x).begin(),(x).end()
#define eps 1e-9

// more abusive notation (use at your own risk):
// #define int ll

using namespace std;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vi = vector<int>;
using vll = vector<ll>;

// debugging
void __print(int x) {std::cerr << x;}
void __print(ll x) {std::cerr << x;} /* remember to uncomment this when not using THE MACRO */
void __print(unsigned x) {std::cerr << x;}
void __print(ull x) {std::cerr << x;}
void __print(float x) {std::cerr << x;}
void __print(double x) {std::cerr << x;}
void __print(ld x) {std::cerr << x;}
void __print(char x) {std::cerr << '\'' << x << '\'';}
void __print(const char *x) {std::cerr << '\"' << x << '\"';}
void __print(const string& x) {std::cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V> void __print(const pair<T, V> &x) {std::cerr << '{'; __print(x.ff); std::cerr << ", "; __print(x.ss); std::cerr << '}';}
template<typename T> void __print(const T& x) {int f = 0; std::cerr << '{'; for (auto &i: x) std::cerr << (f++ ? ", " : ""), __print(i); std::cerr << "}";}
void _print() {std::cerr << "]\n";}
template <typename T, typename... V> void _print(T t, V... v) {__print(t); if (sizeof...(v)) std::cerr << ", "; _print(v...);}
void println() {std::cerr << ">--------------------<" << endl;}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

// templates
template <class T> bool ckmin(T &a, const T &b) {return b<a ? a = b, 1 : 0;}
template <class T> bool ckmax(T &a, const T &b) {return b>a ? a = b, 1 : 0;}
template <class T> using gr = greater<T>;
template <class T> using vc = vector<T>;
template <class T> using p_q = priority_queue<T>;
template <class T> using pqg = priority_queue<T, vc<T>, gr<T>>;
template <class T1, class T2> using pr = pair<T1, T2>;
mt19937_64 rng_ll(chrono::steady_clock::now().time_since_epoch().count());
int rng(int M) {return (int)(rng_ll()%M);} /*returns any random number in [0, M) */

// const variables
constexpr int INF = (int)2e9;
constexpr int MOD = 998244353;
constexpr ll LL_INF = (ll)3e18;
constexpr int mod = (int)1e9 + 7;
constexpr ll inverse = 500000004LL; // inverse of 2 modulo 1e9 + 7

void setIO(const string& str) {// fast input/output
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (str.empty()) return;
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
}

int N;
vll w, dp;
vc<pll> art;

signed main() { // TIME YOURSELF !!!
    setIO("");
    cin >> N;
    w.rsz(N), dp.rsz(N);
    for (int i = 0; i < N; ++i) {
        ll a, b;
        cin >> a >> b;
        art.PB({a, b});
    }
    sort(all(art));
    //debug(art);
    for (int i = 1; i < N; ++i) {
        w[i] = art[i].ss - (art[i].ff - art[i-1].ff);
    }
    dp[0] = art[0].ss;
    for (int i = 1; i < N; ++i) {
        dp[i] = max((ll)art[i].ss, dp[i-1] + w[i]);
    }
    //debug(dp);
    cout << *max_element(all(dp));
    return 0;
}

// TLE -> TRY NOT USING DEFINE INT LONG LONG
// CE -> CHECK LINE 45
// 5000 * 5000 size matrices are kinda big (potential mle)
// Do something, start simpler

Compilation message

art.cpp: In function 'void setIO(const string&)':
art.cpp:88:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   88 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:89:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 352 KB Output is correct
18 Correct 0 ms 352 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 360 KB Output is correct
23 Correct 0 ms 356 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 352 KB Output is correct
18 Correct 0 ms 352 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 360 KB Output is correct
23 Correct 0 ms 356 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 2 ms 872 KB Output is correct
31 Correct 1 ms 868 KB Output is correct
32 Correct 2 ms 728 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 2 ms 868 KB Output is correct
35 Correct 2 ms 856 KB Output is correct
36 Correct 1 ms 856 KB Output is correct
37 Correct 1 ms 860 KB Output is correct
38 Correct 1 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 1 ms 680 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 1 ms 728 KB Output is correct
43 Correct 2 ms 856 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 2 ms 864 KB Output is correct
46 Correct 2 ms 872 KB Output is correct
47 Correct 1 ms 680 KB Output is correct
48 Correct 2 ms 864 KB Output is correct
49 Correct 2 ms 864 KB Output is correct
50 Correct 2 ms 864 KB Output is correct
51 Correct 1 ms 864 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 352 KB Output is correct
18 Correct 0 ms 352 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 360 KB Output is correct
23 Correct 0 ms 356 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 2 ms 872 KB Output is correct
31 Correct 1 ms 868 KB Output is correct
32 Correct 2 ms 728 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 2 ms 868 KB Output is correct
35 Correct 2 ms 856 KB Output is correct
36 Correct 1 ms 856 KB Output is correct
37 Correct 1 ms 860 KB Output is correct
38 Correct 1 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 1 ms 680 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 1 ms 728 KB Output is correct
43 Correct 2 ms 856 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 2 ms 864 KB Output is correct
46 Correct 2 ms 872 KB Output is correct
47 Correct 1 ms 680 KB Output is correct
48 Correct 2 ms 864 KB Output is correct
49 Correct 2 ms 864 KB Output is correct
50 Correct 2 ms 864 KB Output is correct
51 Correct 1 ms 864 KB Output is correct
52 Correct 121 ms 28708 KB Output is correct
53 Correct 120 ms 29092 KB Output is correct
54 Correct 126 ms 28856 KB Output is correct
55 Correct 120 ms 29124 KB Output is correct
56 Correct 121 ms 28852 KB Output is correct
57 Correct 118 ms 29116 KB Output is correct
58 Correct 122 ms 29116 KB Output is correct
59 Correct 124 ms 28856 KB Output is correct
60 Correct 120 ms 29116 KB Output is correct
61 Correct 126 ms 28604 KB Output is correct
62 Correct 120 ms 28876 KB Output is correct
63 Correct 120 ms 28856 KB Output is correct
64 Correct 121 ms 28680 KB Output is correct
65 Correct 127 ms 28860 KB Output is correct
66 Correct 123 ms 28856 KB Output is correct
67 Correct 122 ms 29008 KB Output is correct
68 Correct 129 ms 28856 KB Output is correct