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Submission #1053892

# Submission time Handle Problem Language Result Execution time Memory
1053892 2024-08-11T20:15:30 Z SamAnd Bikeparking (EGOI24_bikeparking) C++17
100 / 100
 146 ms 8016 KB 
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define fi first
#define se second
typedef long long ll;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
mt19937 rnf(2106);
const int N = 300005;
const int INF = 1000000009;

int n;
int x[N], y[N];
int cx[N], cy[N];

int stg(int p, int& q)
{
    for (int i = 1; i <= n; ++i)
    {
        cx[i] = x[i];
        cy[i] = y[i];
    }

    int ans = -p;

    int s = p;
    for (int i = n; i >= 1; --i)
    {
        if (x[i] >= s)
        {
            x[i] -= s;
            s = 0;
        }
        else
        {
            s -= x[i];
            x[i] = 0;
        }
    }
    assert(s == 0);

    s = p;
    for (int i = 1; i <= n; ++i)
    {
        if (y[i] >= s)
        {
            y[i] -= s;
            s = 0;
        }
        else
        {
            s -= y[i];
            y[i] = 0;
        }
    }
    assert(s == 0);

    int i = 1;
    int j = 1;
    while (i <= n && j <= n)
    {
        if (x[i] == 0)
        {
            ++i;
            continue;
        }
        if (y[j] == 0)
        {
            ++j;
            continue;
        }
        if (i > j)
        {
            for (int i = 1; i <= n; ++i)
            {
                x[i] = cx[i];
                y[i] = cy[i];
            }
            return -INF;
        }
        int minu = min(x[i], y[j]);
        if (x[i] >= y[j])
        {
            x[i] -= y[j];
            y[j] = 0;
        }
        else
        {
            y[j] -= x[i];
            x[i] = 0;
        }
        if (i < j)
            ans += minu;
        else
            ++q;
    }

    for (int i = 1; i <= n; ++i)
    {
        x[i] = cx[i];
        y[i] = cy[i];
    }

    return ans;
}

void solv()
{
    n = rnd() % 10 + 1;
    for (int i = 1; i <= n; ++i)
        x[i] = rnd() % 20;
    for (int i = 1; i <= n; ++i)
        y[i] = rnd() % 20;

    int ss = 0;
    for (int i = 1; i <= n; ++i)
        ss += x[i];
    for (int i = 1; i <= n; ++i)
        ss -= y[i];
    if (ss < 0)
    {
        for (int i = 1; i <= n; ++i)
            swap(x[i], y[i]);
    }

    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> x[i];
    for (int i = 1; i <= n; ++i)
        cin >> y[i];

    int s = 0;
    for (int i = 1; i <= n; ++i)
        s += x[i];
    for (int i = 1; i <= n; ++i)
        s -= y[i];
    assert(s >= 0);

    for (int i = n; i >= 1; --i)
    {
        if (x[i] >= s)
        {
            x[i] -= s;
            s = 0;
        }
        else
        {
            s -= x[i];
            x[i] = 0;
        }
    }
    assert(s == 0);

    for (int i = 1; i <= n; ++i)
        s += x[i];

    int ans = -s;
    /*for (int p = 0; p <= s; ++p)
    {
        ans = max(ans, stg(p));
        cout << stg(p) << ' ';
    }
    cout << "\n";*/

    int l = 0, r = s;
    int u;
    while (l <= r)
    {
        int m = (l + r) / 2;
        int q = 0;
        if (stg(m, q) > -INF)
        {
            u = m;
            r = m - 1;
        }
        else
            l = m + 1;
    }

    l = u, r = s;
    while (l <= r)
    {
        int m = (l + r) / 2;
        int q = 0;
        ans = max(ans, stg(m, q));
        if (q > 1)
        {
            l = m + 1;
        }
        else
        {
            r = m - 1;
        }
    }

    cout << ans << "\n";
}

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    #endif // SOMETHING
    ios_base::sync_with_stdio(false), cin.tie(0);

    int tt = 1;
    //cin >> tt;
    while (tt--)
    {
        solv();
    }
    return 0;
}

Compilation message

Main.cpp: In function 'void solv()':
Main.cpp:185:20: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized]
  185 |         int m = (l + r) / 2;
      |                 ~~~^~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4440 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 0 ms 4444 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 22 ms 4956 KB Output is correct
6 Correct 63 ms 4956 KB Output is correct
7 Correct 137 ms 4956 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4444 KB Output is correct
2 Correct 17 ms 4956 KB Output is correct
3 Correct 62 ms 4956 KB Output is correct
4 Correct 1 ms 4696 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 111 ms 4984 KB Output is correct
11 Correct 106 ms 6232 KB Output is correct
12 Correct 110 ms 6244 KB Output is correct
13 Correct 112 ms 5976 KB Output is correct
14 Correct 35 ms 5968 KB Output is correct
15 Correct 45 ms 6100 KB Output is correct
16 Correct 90 ms 6236 KB Output is correct
17 Correct 0 ms 4440 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4440 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 0 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 0 ms 4444 KB Output is correct
24 Correct 0 ms 4444 KB Output is correct
25 Correct 0 ms 4444 KB Output is correct
26 Correct 0 ms 4444 KB Output is correct
27 Correct 0 ms 4444 KB Output is correct
28 Correct 0 ms 4444 KB Output is correct
29 Correct 0 ms 4444 KB Output is correct
30 Correct 0 ms 4444 KB Output is correct
31 Correct 0 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4564 KB Output is correct
34 Correct 0 ms 4444 KB Output is correct
35 Correct 0 ms 4444 KB Output is correct
36 Correct 0 ms 4444 KB Output is correct
37 Correct 0 ms 4444 KB Output is correct
38 Correct 0 ms 4444 KB Output is correct
39 Correct 0 ms 4444 KB Output is correct
40 Correct 0 ms 4440 KB Output is correct
41 Correct 0 ms 4444 KB Output is correct
42 Correct 1 ms 4440 KB Output is correct
43 Correct 0 ms 4444 KB Output is correct
44 Correct 0 ms 4444 KB Output is correct
45 Correct 0 ms 4444 KB Output is correct
46 Correct 0 ms 4444 KB Output is correct
47 Correct 1 ms 4444 KB Output is correct
48 Correct 1 ms 4444 KB Output is correct
49 Correct 0 ms 4444 KB Output is correct
50 Correct 0 ms 4444 KB Output is correct
51 Correct 0 ms 4444 KB Output is correct
52 Correct 0 ms 4444 KB Output is correct
53 Correct 1 ms 4444 KB Output is correct
54 Correct 1 ms 4440 KB Output is correct
55 Correct 1 ms 4444 KB Output is correct
56 Correct 0 ms 4444 KB Output is correct
57 Correct 1 ms 4444 KB Output is correct
58 Correct 0 ms 4444 KB Output is correct
59 Correct 1 ms 4444 KB Output is correct
60 Correct 1 ms 4440 KB Output is correct
61 Correct 1 ms 4696 KB Output is correct
62 Correct 0 ms 4444 KB Output is correct
63 Correct 1 ms 4444 KB Output is correct
64 Correct 1 ms 4444 KB Output is correct
65 Correct 0 ms 4444 KB Output is correct
66 Correct 0 ms 4444 KB Output is correct
67 Correct 0 ms 4444 KB Output is correct
68 Correct 0 ms 4444 KB Output is correct
69 Correct 1 ms 4444 KB Output is correct
70 Correct 0 ms 4444 KB Output is correct
71 Correct 0 ms 4444 KB Output is correct
72 Correct 0 ms 4444 KB Output is correct
73 Correct 0 ms 4444 KB Output is correct
74 Correct 0 ms 4444 KB Output is correct
75 Correct 1 ms 4444 KB Output is correct
76 Correct 0 ms 4444 KB Output is correct
77 Correct 0 ms 4444 KB Output is correct
78 Correct 0 ms 4444 KB Output is correct
79 Correct 1 ms 4444 KB Output is correct
80 Correct 1 ms 4528 KB Output is correct
81 Correct 1 ms 4444 KB Output is correct
82 Correct 0 ms 4444 KB Output is correct
83 Correct 0 ms 4444 KB Output is correct
84 Correct 0 ms 4444 KB Output is correct
85 Correct 0 ms 4444 KB Output is correct
86 Correct 0 ms 4444 KB Output is correct
87 Correct 0 ms 4444 KB Output is correct
88 Correct 1 ms 4444 KB Output is correct
89 Correct 1 ms 4568 KB Output is correct
90 Correct 0 ms 4444 KB Output is correct
91 Correct 1 ms 4444 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4440 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 0 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 0 ms 4444 KB Output is correct
24 Correct 0 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 22 ms 4956 KB Output is correct
27 Correct 63 ms 4956 KB Output is correct
28 Correct 137 ms 4956 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 0 ms 4444 KB Output is correct
31 Correct 0 ms 4444 KB Output is correct
32 Correct 0 ms 4444 KB Output is correct
33 Correct 17 ms 4956 KB Output is correct
34 Correct 62 ms 4956 KB Output is correct
35 Correct 1 ms 4696 KB Output is correct
36 Correct 0 ms 4444 KB Output is correct
37 Correct 0 ms 4444 KB Output is correct
38 Correct 1 ms 4444 KB Output is correct
39 Correct 0 ms 4444 KB Output is correct
40 Correct 0 ms 4444 KB Output is correct
41 Correct 111 ms 4984 KB Output is correct
42 Correct 106 ms 6232 KB Output is correct
43 Correct 110 ms 6244 KB Output is correct
44 Correct 112 ms 5976 KB Output is correct
45 Correct 35 ms 5968 KB Output is correct
46 Correct 45 ms 6100 KB Output is correct
47 Correct 90 ms 6236 KB Output is correct
48 Correct 0 ms 4440 KB Output is correct
49 Correct 1 ms 4440 KB Output is correct
50 Correct 0 ms 4444 KB Output is correct
51 Correct 0 ms 4444 KB Output is correct
52 Correct 0 ms 4444 KB Output is correct
53 Correct 0 ms 4444 KB Output is correct
54 Correct 0 ms 4444 KB Output is correct
55 Correct 0 ms 4444 KB Output is correct
56 Correct 0 ms 4444 KB Output is correct
57 Correct 0 ms 4444 KB Output is correct
58 Correct 0 ms 4444 KB Output is correct
59 Correct 0 ms 4444 KB Output is correct
60 Correct 1 ms 4444 KB Output is correct
61 Correct 1 ms 4564 KB Output is correct
62 Correct 0 ms 4444 KB Output is correct
63 Correct 0 ms 4444 KB Output is correct
64 Correct 0 ms 4444 KB Output is correct
65 Correct 0 ms 4444 KB Output is correct
66 Correct 0 ms 4444 KB Output is correct
67 Correct 0 ms 4444 KB Output is correct
68 Correct 0 ms 4440 KB Output is correct
69 Correct 0 ms 4444 KB Output is correct
70 Correct 1 ms 4440 KB Output is correct
71 Correct 0 ms 4444 KB Output is correct
72 Correct 0 ms 4444 KB Output is correct
73 Correct 0 ms 4444 KB Output is correct
74 Correct 0 ms 4444 KB Output is correct
75 Correct 1 ms 4444 KB Output is correct
76 Correct 1 ms 4444 KB Output is correct
77 Correct 0 ms 4444 KB Output is correct
78 Correct 0 ms 4444 KB Output is correct
79 Correct 0 ms 4444 KB Output is correct
80 Correct 0 ms 4444 KB Output is correct
81 Correct 1 ms 4444 KB Output is correct
82 Correct 1 ms 4440 KB Output is correct
83 Correct 1 ms 4444 KB Output is correct
84 Correct 0 ms 4444 KB Output is correct
85 Correct 1 ms 4444 KB Output is correct
86 Correct 0 ms 4444 KB Output is correct
87 Correct 1 ms 4444 KB Output is correct
88 Correct 1 ms 4440 KB Output is correct
89 Correct 1 ms 4696 KB Output is correct
90 Correct 0 ms 4444 KB Output is correct
91 Correct 1 ms 4444 KB Output is correct
92 Correct 1 ms 4444 KB Output is correct
93 Correct 0 ms 4444 KB Output is correct
94 Correct 0 ms 4444 KB Output is correct
95 Correct 0 ms 4444 KB Output is correct
96 Correct 0 ms 4444 KB Output is correct
97 Correct 1 ms 4444 KB Output is correct
98 Correct 0 ms 4444 KB Output is correct
99 Correct 0 ms 4444 KB Output is correct
100 Correct 0 ms 4444 KB Output is correct
101 Correct 0 ms 4444 KB Output is correct
102 Correct 0 ms 4444 KB Output is correct
103 Correct 1 ms 4444 KB Output is correct
104 Correct 0 ms 4444 KB Output is correct
105 Correct 0 ms 4444 KB Output is correct
106 Correct 0 ms 4444 KB Output is correct
107 Correct 1 ms 4444 KB Output is correct
108 Correct 1 ms 4528 KB Output is correct
109 Correct 1 ms 4444 KB Output is correct
110 Correct 0 ms 4444 KB Output is correct
111 Correct 0 ms 4444 KB Output is correct
112 Correct 0 ms 4444 KB Output is correct
113 Correct 0 ms 4444 KB Output is correct
114 Correct 0 ms 4444 KB Output is correct
115 Correct 0 ms 4444 KB Output is correct
116 Correct 1 ms 4444 KB Output is correct
117 Correct 1 ms 4568 KB Output is correct
118 Correct 0 ms 4444 KB Output is correct
119 Correct 1 ms 4444 KB Output is correct
120 Correct 1 ms 4444 KB Output is correct
121 Correct 1 ms 4440 KB Output is correct
122 Correct 1 ms 4444 KB Output is correct
123 Correct 0 ms 4444 KB Output is correct
124 Correct 0 ms 4444 KB Output is correct
125 Correct 1 ms 4444 KB Output is correct
126 Correct 0 ms 4444 KB Output is correct
127 Correct 0 ms 4444 KB Output is correct
128 Correct 0 ms 4444 KB Output is correct
129 Correct 0 ms 4452 KB Output is correct
130 Correct 1 ms 4452 KB Output is correct
131 Correct 1 ms 4452 KB Output is correct
132 Correct 0 ms 4456 KB Output is correct
133 Correct 1 ms 4456 KB Output is correct
134 Correct 1 ms 4708 KB Output is correct
135 Correct 1 ms 4456 KB Output is correct
136 Correct 0 ms 4456 KB Output is correct
137 Correct 1 ms 4456 KB Output is correct
138 Correct 0 ms 4452 KB Output is correct
139 Correct 1 ms 4456 KB Output is correct
140 Correct 0 ms 4452 KB Output is correct
141 Correct 0 ms 4456 KB Output is correct
142 Correct 1 ms 4588 KB Output is correct
143 Correct 18 ms 6244 KB Output is correct
144 Correct 62 ms 6160 KB Output is correct
145 Correct 140 ms 7376 KB Output is correct
146 Correct 1 ms 4452 KB Output is correct
147 Correct 1 ms 4452 KB Output is correct
148 Correct 1 ms 4448 KB Output is correct
149 Correct 0 ms 4448 KB Output is correct
150 Correct 0 ms 4444 KB Output is correct
151 Correct 1 ms 4456 KB Output is correct
152 Correct 112 ms 6252 KB Output is correct
153 Correct 112 ms 5712 KB Output is correct
154 Correct 112 ms 6236 KB Output is correct
155 Correct 118 ms 5976 KB Output is correct
156 Correct 35 ms 6228 KB Output is correct
157 Correct 45 ms 6236 KB Output is correct
158 Correct 91 ms 6236 KB Output is correct
159 Correct 1 ms 4444 KB Output is correct
160 Correct 0 ms 4444 KB Output is correct
161 Correct 0 ms 4444 KB Output is correct
162 Correct 0 ms 4444 KB Output is correct
163 Correct 1 ms 4440 KB Output is correct
164 Correct 1 ms 4444 KB Output is correct
165 Correct 0 ms 4440 KB Output is correct
166 Correct 1 ms 4444 KB Output is correct
167 Correct 0 ms 4444 KB Output is correct
168 Correct 1 ms 4444 KB Output is correct
169 Correct 1 ms 4444 KB Output is correct
170 Correct 0 ms 4444 KB Output is correct
171 Correct 0 ms 4444 KB Output is correct
172 Correct 0 ms 4444 KB Output is correct
173 Correct 0 ms 4444 KB Output is correct
174 Correct 0 ms 4444 KB Output is correct
175 Correct 0 ms 4444 KB Output is correct
176 Correct 1 ms 4444 KB Output is correct
177 Correct 0 ms 4572 KB Output is correct
178 Correct 1 ms 4440 KB Output is correct
179 Correct 1 ms 4444 KB Output is correct
180 Correct 0 ms 4444 KB Output is correct
181 Correct 0 ms 4444 KB Output is correct
182 Correct 0 ms 4444 KB Output is correct
183 Correct 0 ms 4444 KB Output is correct
184 Correct 0 ms 4444 KB Output is correct
185 Correct 0 ms 4444 KB Output is correct
186 Correct 1 ms 4444 KB Output is correct
187 Correct 0 ms 4580 KB Output is correct
188 Correct 1 ms 4444 KB Output is correct
189 Correct 0 ms 4444 KB Output is correct
190 Correct 0 ms 4444 KB Output is correct
191 Correct 0 ms 4444 KB Output is correct
192 Correct 0 ms 4444 KB Output is correct
193 Correct 0 ms 4444 KB Output is correct
194 Correct 0 ms 4444 KB Output is correct
195 Correct 1 ms 4444 KB Output is correct
196 Correct 0 ms 4444 KB Output is correct
197 Correct 78 ms 6248 KB Output is correct
198 Correct 81 ms 6664 KB Output is correct
199 Correct 76 ms 6748 KB Output is correct
200 Correct 92 ms 6992 KB Output is correct
201 Correct 99 ms 6956 KB Output is correct
202 Correct 105 ms 7484 KB Output is correct
203 Correct 75 ms 7000 KB Output is correct
204 Correct 98 ms 7504 KB Output is correct
205 Correct 98 ms 7248 KB Output is correct
206 Correct 79 ms 6236 KB Output is correct
207 Correct 82 ms 6992 KB Output is correct
208 Correct 93 ms 6992 KB Output is correct
209 Correct 84 ms 7000 KB Output is correct
210 Correct 146 ms 8016 KB Output is correct
211 Correct 138 ms 7760 KB Output is correct
212 Correct 78 ms 7004 KB Output is correct
213 Correct 122 ms 7892 KB Output is correct
214 Correct 146 ms 8016 KB Output is correct
215 Correct 55 ms 5972 KB Output is correct
216 Correct 77 ms 5976 KB Output is correct
217 Correct 35 ms 6224 KB Output is correct
218 Correct 72 ms 5976 KB Output is correct
219 Correct 1 ms 4440 KB Output is correct
220 Correct 1 ms 4444 KB Output is correct
221 Correct 1 ms 4444 KB Output is correct
222 Correct 0 ms 4444 KB Output is correct
223 Correct 0 ms 4444 KB Output is correct