oj.uz

Submission #563396

# Submission time Handle Problem Language Result Execution time Memory
563396 2022-05-17T06:18:23 Z AA_Surely Swapping Cities (APIO20_swap) C++14
100 / 100
 359 ms 65352 KB 
#include "swap.h"
#include <bits/stdc++.h>

#define FOR(i,x,n) 	for(int i=x; i<n; i++)
#define F0R(i,n) 	FOR(i,0,n)
#define ROF(i,x,n) 	for(int i=n-1; i>=x; i--)
#define R0F(i,n) 	ROF(i,0,n)

#define WTF 		cout << "WTF" << endl

#define IOS 		ios::sync_with_stdio(false); cin.tie(0)
#define F 			first
#define S	 		second
#define pb 			push_back

#define ALL(x) 		x.begin(), x.end()
#define RALL(x) 	x.rbegin(), x.rend()

using namespace std;
typedef long long 		LL;

typedef pair<int, int> 	PII;
typedef pair<LL, LL> 	PLL;

typedef vector<int> 	VI;
typedef vector<LL> 		VLL;
typedef vector<PII> 	VPII;
typedef vector<PLL> 	VPLL;

const int N = 3e5 + 7;
const int ALPHA = 27;
const int INF = 1e9 + 7;
const int MOD = 1e9 + 7;
const int LOG = 22;

struct Edge {
    int sp, ep, val;

    inline bool operator < (const Edge &other) {
        return val < other.val;
    }
} eset[N];

int n, m;
int par[N], weight[N], height[N];
int deg[N], ans[N], up[N][LOG];
bool possible[N];
VI adj[N];

int grand(int x) {
    if (par[x] < 0) return x;
    return par[x] = grand(par[x]);
}

inline void merge(int a, int b, int x) {
    deg[a]++; deg[b]++;
    if (deg[a] >= 3 || deg[b] >= 3) possible[n] = 1;

    a = grand(a); b = grand(b);

    possible[n] |= possible[a] | possible[b];

    adj[n].pb(a);
    if (a != b) adj[n].pb(b);
    else possible[n] = 1;

    weight[n] = x;

    par[a] = par[b] = n;
    n++;
    return;
}

void dfs(int now = n - 1, int best = INF, int h = 0) {
    if (possible[now]) best = weight[now];
    ans[now] = best;
    height[now] = h;

    for(int on : adj[now]) {
        dfs(on, best, h + 1);
        up[on][0] = now;
    }

    return;
}

void precalc() {
    up[n - 1][0] = up[n][0] = 0;
    FOR(k, 1, LOG) F0R(i, n + 1) 
        up[i][k] = up[ up[i][k - 1] ][k - 1];

    return;
}

inline int lca(int a, int b) {
    if (height[a] < height[b]) swap(a, b);
    R0F(i, LOG) if (height[a] - (1 << i) >= height[b]) 
        a = up[a][i];
    if (a == b) return a;

    R0F(i, LOG) if (up[a][i] != up[b][i]) {
        a = up[a][i];
        b = up[b][i];
    }

    return up[a][0];
}

void init(int p, int q, VI us, VI vs, VI ws) {
    n = p; m = q;
    F0R(i, m) {
        eset[i].sp = us[i];
        eset[i].ep = vs[i];
        eset[i].val = ws[i];
    }
    
    fill(par, par + N, -1);
    sort(eset, eset + m);
    F0R(i, m) merge(eset[i].sp, eset[i].ep, eset[i].val);

    dfs();
    precalc();
}

int getMinimumFuelCapacity(int x, int y) {
    int z = lca(x, y);

    return (ans[z] == INF ? -1 : ans[z]);
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8640 KB Output is correct
5 Correct 5 ms 8796 KB Output is correct
6 Correct 7 ms 8788 KB Output is correct
7 Correct 5 ms 8796 KB Output is correct
8 Correct 5 ms 8780 KB Output is correct
9 Correct 93 ms 29776 KB Output is correct
10 Correct 115 ms 34744 KB Output is correct
11 Correct 114 ms 34200 KB Output is correct
12 Correct 125 ms 35308 KB Output is correct
13 Correct 116 ms 38732 KB Output is correct
14 Correct 99 ms 29828 KB Output is correct
15 Correct 213 ms 36528 KB Output is correct
16 Correct 224 ms 36028 KB Output is correct
17 Correct 221 ms 37368 KB Output is correct
18 Correct 287 ms 40500 KB Output is correct
19 Correct 87 ms 16724 KB Output is correct
20 Correct 210 ms 37848 KB Output is correct
21 Correct 226 ms 37212 KB Output is correct
22 Correct 232 ms 38864 KB Output is correct
23 Correct 305 ms 42048 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 276 ms 46132 KB Output is correct
4 Correct 287 ms 47736 KB Output is correct
5 Correct 305 ms 46968 KB Output is correct
6 Correct 271 ms 47556 KB Output is correct
7 Correct 299 ms 47400 KB Output is correct
8 Correct 264 ms 45996 KB Output is correct
9 Correct 269 ms 47180 KB Output is correct
10 Correct 265 ms 45716 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8640 KB Output is correct
5 Correct 5 ms 8796 KB Output is correct
6 Correct 7 ms 8788 KB Output is correct
7 Correct 5 ms 8796 KB Output is correct
8 Correct 5 ms 8780 KB Output is correct
9 Correct 4 ms 8532 KB Output is correct
10 Correct 5 ms 8780 KB Output is correct
11 Correct 5 ms 8780 KB Output is correct
12 Correct 5 ms 8784 KB Output is correct
13 Correct 5 ms 8772 KB Output is correct
14 Correct 5 ms 8712 KB Output is correct
15 Correct 5 ms 8788 KB Output is correct
16 Correct 5 ms 8788 KB Output is correct
17 Correct 5 ms 8788 KB Output is correct
18 Correct 6 ms 8776 KB Output is correct
19 Correct 5 ms 8796 KB Output is correct
20 Correct 6 ms 8780 KB Output is correct
21 Correct 5 ms 8788 KB Output is correct
22 Correct 6 ms 8916 KB Output is correct
23 Correct 5 ms 8784 KB Output is correct
24 Correct 5 ms 8916 KB Output is correct
25 Correct 7 ms 9040 KB Output is correct
26 Correct 6 ms 9032 KB Output is correct
27 Correct 5 ms 8788 KB Output is correct
28 Correct 6 ms 9044 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 4 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8640 KB Output is correct
6 Correct 5 ms 8796 KB Output is correct
7 Correct 7 ms 8788 KB Output is correct
8 Correct 5 ms 8796 KB Output is correct
9 Correct 5 ms 8780 KB Output is correct
10 Correct 93 ms 29776 KB Output is correct
11 Correct 115 ms 34744 KB Output is correct
12 Correct 114 ms 34200 KB Output is correct
13 Correct 125 ms 35308 KB Output is correct
14 Correct 116 ms 38732 KB Output is correct
15 Correct 5 ms 8780 KB Output is correct
16 Correct 5 ms 8780 KB Output is correct
17 Correct 5 ms 8784 KB Output is correct
18 Correct 5 ms 8772 KB Output is correct
19 Correct 5 ms 8712 KB Output is correct
20 Correct 5 ms 8788 KB Output is correct
21 Correct 5 ms 8788 KB Output is correct
22 Correct 5 ms 8788 KB Output is correct
23 Correct 6 ms 8776 KB Output is correct
24 Correct 5 ms 8796 KB Output is correct
25 Correct 6 ms 8780 KB Output is correct
26 Correct 5 ms 8788 KB Output is correct
27 Correct 6 ms 8916 KB Output is correct
28 Correct 5 ms 8784 KB Output is correct
29 Correct 5 ms 8916 KB Output is correct
30 Correct 7 ms 9040 KB Output is correct
31 Correct 6 ms 9032 KB Output is correct
32 Correct 5 ms 8788 KB Output is correct
33 Correct 6 ms 9044 KB Output is correct
34 Correct 17 ms 12372 KB Output is correct
35 Correct 122 ms 36684 KB Output is correct
36 Correct 110 ms 36708 KB Output is correct
37 Correct 116 ms 36552 KB Output is correct
38 Correct 125 ms 36232 KB Output is correct
39 Correct 110 ms 36180 KB Output is correct
40 Correct 103 ms 33876 KB Output is correct
41 Correct 128 ms 37000 KB Output is correct
42 Correct 128 ms 36728 KB Output is correct
43 Correct 108 ms 40744 KB Output is correct
44 Correct 118 ms 36940 KB Output is correct
45 Correct 158 ms 49520 KB Output is correct
46 Correct 129 ms 36736 KB Output is correct
47 Correct 119 ms 36832 KB Output is correct
48 Correct 130 ms 40828 KB Output is correct
49 Correct 123 ms 47308 KB Output is correct
50 Correct 97 ms 38716 KB Output is correct
51 Correct 145 ms 43944 KB Output is correct
52 Correct 179 ms 52252 KB Output is correct
53 Correct 209 ms 55268 KB Output is correct
54 Correct 223 ms 61632 KB Output is correct
55 Correct 114 ms 40464 KB Output is correct
56 Correct 189 ms 56848 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8640 KB Output is correct
5 Correct 5 ms 8796 KB Output is correct
6 Correct 7 ms 8788 KB Output is correct
7 Correct 5 ms 8796 KB Output is correct
8 Correct 5 ms 8780 KB Output is correct
9 Correct 93 ms 29776 KB Output is correct
10 Correct 115 ms 34744 KB Output is correct
11 Correct 114 ms 34200 KB Output is correct
12 Correct 125 ms 35308 KB Output is correct
13 Correct 116 ms 38732 KB Output is correct
14 Correct 99 ms 29828 KB Output is correct
15 Correct 213 ms 36528 KB Output is correct
16 Correct 224 ms 36028 KB Output is correct
17 Correct 221 ms 37368 KB Output is correct
18 Correct 287 ms 40500 KB Output is correct
19 Correct 276 ms 46132 KB Output is correct
20 Correct 287 ms 47736 KB Output is correct
21 Correct 305 ms 46968 KB Output is correct
22 Correct 271 ms 47556 KB Output is correct
23 Correct 299 ms 47400 KB Output is correct
24 Correct 264 ms 45996 KB Output is correct
25 Correct 269 ms 47180 KB Output is correct
26 Correct 265 ms 45716 KB Output is correct
27 Correct 5 ms 8780 KB Output is correct
28 Correct 5 ms 8780 KB Output is correct
29 Correct 5 ms 8784 KB Output is correct
30 Correct 5 ms 8772 KB Output is correct
31 Correct 5 ms 8712 KB Output is correct
32 Correct 5 ms 8788 KB Output is correct
33 Correct 5 ms 8788 KB Output is correct
34 Correct 5 ms 8788 KB Output is correct
35 Correct 6 ms 8776 KB Output is correct
36 Correct 17 ms 12372 KB Output is correct
37 Correct 122 ms 36684 KB Output is correct
38 Correct 110 ms 36708 KB Output is correct
39 Correct 116 ms 36552 KB Output is correct
40 Correct 125 ms 36232 KB Output is correct
41 Correct 110 ms 36180 KB Output is correct
42 Correct 103 ms 33876 KB Output is correct
43 Correct 128 ms 37000 KB Output is correct
44 Correct 128 ms 36728 KB Output is correct
45 Correct 108 ms 40744 KB Output is correct
46 Correct 118 ms 36940 KB Output is correct
47 Correct 22 ms 12544 KB Output is correct
48 Correct 251 ms 41472 KB Output is correct
49 Correct 239 ms 41592 KB Output is correct
50 Correct 243 ms 41392 KB Output is correct
51 Correct 235 ms 41264 KB Output is correct
52 Correct 229 ms 39676 KB Output is correct
53 Correct 186 ms 33176 KB Output is correct
54 Correct 278 ms 42384 KB Output is correct
55 Correct 254 ms 41524 KB Output is correct
56 Correct 321 ms 44844 KB Output is correct
57 Correct 263 ms 42600 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8532 KB Output is correct
3 Correct 4 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8640 KB Output is correct
6 Correct 5 ms 8796 KB Output is correct
7 Correct 7 ms 8788 KB Output is correct
8 Correct 5 ms 8796 KB Output is correct
9 Correct 5 ms 8780 KB Output is correct
10 Correct 93 ms 29776 KB Output is correct
11 Correct 115 ms 34744 KB Output is correct
12 Correct 114 ms 34200 KB Output is correct
13 Correct 125 ms 35308 KB Output is correct
14 Correct 116 ms 38732 KB Output is correct
15 Correct 99 ms 29828 KB Output is correct
16 Correct 213 ms 36528 KB Output is correct
17 Correct 224 ms 36028 KB Output is correct
18 Correct 221 ms 37368 KB Output is correct
19 Correct 287 ms 40500 KB Output is correct
20 Correct 276 ms 46132 KB Output is correct
21 Correct 287 ms 47736 KB Output is correct
22 Correct 305 ms 46968 KB Output is correct
23 Correct 271 ms 47556 KB Output is correct
24 Correct 299 ms 47400 KB Output is correct
25 Correct 264 ms 45996 KB Output is correct
26 Correct 269 ms 47180 KB Output is correct
27 Correct 265 ms 45716 KB Output is correct
28 Correct 5 ms 8780 KB Output is correct
29 Correct 5 ms 8780 KB Output is correct
30 Correct 5 ms 8784 KB Output is correct
31 Correct 5 ms 8772 KB Output is correct
32 Correct 5 ms 8712 KB Output is correct
33 Correct 5 ms 8788 KB Output is correct
34 Correct 5 ms 8788 KB Output is correct
35 Correct 5 ms 8788 KB Output is correct
36 Correct 6 ms 8776 KB Output is correct
37 Correct 17 ms 12372 KB Output is correct
38 Correct 122 ms 36684 KB Output is correct
39 Correct 110 ms 36708 KB Output is correct
40 Correct 116 ms 36552 KB Output is correct
41 Correct 125 ms 36232 KB Output is correct
42 Correct 110 ms 36180 KB Output is correct
43 Correct 103 ms 33876 KB Output is correct
44 Correct 128 ms 37000 KB Output is correct
45 Correct 128 ms 36728 KB Output is correct
46 Correct 108 ms 40744 KB Output is correct
47 Correct 118 ms 36940 KB Output is correct
48 Correct 22 ms 12544 KB Output is correct
49 Correct 251 ms 41472 KB Output is correct
50 Correct 239 ms 41592 KB Output is correct
51 Correct 243 ms 41392 KB Output is correct
52 Correct 235 ms 41264 KB Output is correct
53 Correct 229 ms 39676 KB Output is correct
54 Correct 186 ms 33176 KB Output is correct
55 Correct 278 ms 42384 KB Output is correct
56 Correct 254 ms 41524 KB Output is correct
57 Correct 321 ms 44844 KB Output is correct
58 Correct 263 ms 42600 KB Output is correct
59 Correct 87 ms 16724 KB Output is correct
60 Correct 210 ms 37848 KB Output is correct
61 Correct 226 ms 37212 KB Output is correct
62 Correct 232 ms 38864 KB Output is correct
63 Correct 305 ms 42048 KB Output is correct
64 Correct 5 ms 8796 KB Output is correct
65 Correct 6 ms 8780 KB Output is correct
66 Correct 5 ms 8788 KB Output is correct
67 Correct 6 ms 8916 KB Output is correct
68 Correct 5 ms 8784 KB Output is correct
69 Correct 5 ms 8916 KB Output is correct
70 Correct 7 ms 9040 KB Output is correct
71 Correct 6 ms 9032 KB Output is correct
72 Correct 5 ms 8788 KB Output is correct
73 Correct 6 ms 9044 KB Output is correct
74 Correct 158 ms 49520 KB Output is correct
75 Correct 129 ms 36736 KB Output is correct
76 Correct 119 ms 36832 KB Output is correct
77 Correct 130 ms 40828 KB Output is correct
78 Correct 123 ms 47308 KB Output is correct
79 Correct 97 ms 38716 KB Output is correct
80 Correct 145 ms 43944 KB Output is correct
81 Correct 179 ms 52252 KB Output is correct
82 Correct 209 ms 55268 KB Output is correct
83 Correct 223 ms 61632 KB Output is correct
84 Correct 114 ms 40464 KB Output is correct
85 Correct 189 ms 56848 KB Output is correct
86 Correct 78 ms 23724 KB Output is correct
87 Correct 236 ms 41544 KB Output is correct
88 Correct 238 ms 41488 KB Output is correct
89 Correct 279 ms 44208 KB Output is correct
90 Correct 237 ms 53528 KB Output is correct
91 Correct 229 ms 50364 KB Output is correct
92 Correct 294 ms 47656 KB Output is correct
93 Correct 300 ms 56524 KB Output is correct
94 Correct 359 ms 59680 KB Output is correct
95 Correct 353 ms 65352 KB Output is correct
96 Correct 320 ms 45176 KB Output is correct
97 Correct 339 ms 52472 KB Output is correct