oj.uz

Submission #655055

# Submission time Handle Problem Language Result Execution time Memory
655055 2022-11-02T22:39:31 Z horiseun Fuel Station (NOI20_fuelstation) C++11
13 / 100
 178 ms 14648 KB 
#include <iostream>
#include <vector>
#include <tuple>
#include <algorithm>
using namespace std;

int n, d, a, b, x, l, r, m;
vector<tuple<int, int, int>> stops;

bool valid(int f) {
    int cd = 0;
    for (int i = 1; i < stops.size(); i++) {
        tie(x, a, b) = stops[i];
        f -= (x - get<0>(stops[i - 1]));
        if (f < 0) return false;
        if (f <= b) f += a;
    }
    return true;
}

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n >> d;
    for (int i = 0; i < n; i++) {
        cin >> x >> a >> b;
        if (x > d) continue;
        stops.push_back({x, a, b});
    }
    stops.push_back({0, 0, 0});
    sort(stops.begin(), stops.end());

    l = 0, r = 1e9 + 5;
    while (l + 1 != r) {
        m = (l + r) / 2;
        if (valid(m)) r = m;
        else l = m;
    }

    cout << r << "\n";


}

Compilation message

FuelStation.cpp: In function 'bool valid(int)':
FuelStation.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int i = 1; i < stops.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~
FuelStation.cpp:11:9: warning: unused variable 'cd' [-Wunused-variable]
   11 |     int cd = 0;
      |         ^~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 132 ms 14104 KB Output is correct
2 Correct 141 ms 14060 KB Output is correct
3 Correct 159 ms 13980 KB Output is correct
4 Correct 131 ms 14136 KB Output is correct
5 Correct 131 ms 14556 KB Output is correct
6 Correct 160 ms 13524 KB Output is correct
7 Correct 136 ms 13528 KB Output is correct
8 Correct 141 ms 14116 KB Output is correct
9 Correct 178 ms 14648 KB Output is correct
10 Correct 135 ms 13576 KB Output is correct
11 Correct 134 ms 13624 KB Output is correct
12 Correct 142 ms 14064 KB Output is correct
13 Correct 129 ms 13612 KB Output is correct
14 Correct 130 ms 14132 KB Output is correct
15 Correct 130 ms 14108 KB Output is correct
16 Correct 136 ms 14620 KB Output is correct
17 Correct 136 ms 14584 KB Output is correct
18 Correct 151 ms 14144 KB Output is correct
19 Correct 133 ms 14116 KB Output is correct
20 Correct 133 ms 14124 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 320 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 320 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -