oj.uz

답안 #997091

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
997091 2024-06-11T17:26:27 Z LOLOLO Fuel Station (NOI20_fuelstation) C++17
13 / 100
 263 ms 22780 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (ll)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 3e5 + 10;

vector < vector <int>> v;

bool check(int r) {
    int l = 0, pr = 0;
    for (auto x : v) {
        int d = x[0] - pr;
        pr = x[0];
        r -= d;
        l -= d;
        if (r < 0)
            return 0;

        l = max(l, 0);
        if (l > x[2]) 
            continue;

        if (r <= x[2]) {
            r = r + x[1];
        } else {
            r = max(r, x[1] + x[2]);
        }
    }

    return l <= r;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n, d;
    cin >> n >> d;

    for (int i = 0; i < n; i++) {
        int x, a, b;
        cin >> x >> a >> b;
        v.pb({x, a, b});
    }

    v.pb({d, 0, 0});
    sort(all(v));

    int l = 1, r = d, m, ans = 0;
    while (l <= r) {
        m = (l + r) / 2;
        if (check(m)) {
            ans = m;
            r = m - 1;
        } else {
            l = m + 1;
        }
    }

    cout << ans << '\n';
    return 0;

}

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 242 ms 21036 KB Output is correct
2 Correct 263 ms 22256 KB Output is correct
3 Correct 212 ms 22780 KB Output is correct
4 Correct 255 ms 21508 KB Output is correct
5 Correct 230 ms 22508 KB Output is correct
6 Correct 233 ms 22004 KB Output is correct
7 Correct 224 ms 20988 KB Output is correct
8 Correct 194 ms 20908 KB Output is correct
9 Correct 251 ms 22260 KB Output is correct
10 Correct 201 ms 21756 KB Output is correct
11 Correct 226 ms 22004 KB Output is correct
12 Correct 241 ms 21496 KB Output is correct
13 Correct 209 ms 21752 KB Output is correct
14 Correct 218 ms 21752 KB Output is correct
15 Correct 237 ms 21492 KB Output is correct
16 Correct 262 ms 21492 KB Output is correct
17 Correct 235 ms 21756 KB Output is correct
18 Correct 225 ms 22700 KB Output is correct
19 Correct 213 ms 21260 KB Output is correct
20 Correct 244 ms 21496 KB Output is correct

Subtask #3
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -