oj.uz

Submission #568987

# Submission time Handle Problem Language Result Execution time Memory
568987 2022-05-26T12:10:09 Z Siffer Ancient Books (IOI17_books) C++14
100 / 100
 210 ms 26700 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define F first
#define S second
#define vi vector<int>
#define ii pair<int, int>

ii explore(int f1, int f2, int t2, int t1, vi &mi, vi &ma, vi &c) {
	int f3 = f1;
	int t3 = t1;
	for(int i = f1; i <= t1; i++) {
		if(i == f2) {
			i = t2+1;
			if(i > t1) continue;
		}
		f3 = min(f3, mi[c[i]]);
		t3 = max(t3, ma[c[i]]);
	}
	if(f3 == f1 && t3 == t1) return {f1, t1};
	return explore(f3, f1, t1, t3, mi, ma, c);
}

ll minimum_walk(vi p, int s) {
	int n = p.size();
	ll res = 0;
	vi c(n,-1), mi(n, n), ma(n, 0);
	for(int i = 0; i < n; i++) {
		if(c[i] == -1) {
			int k = p[i];
			c[i] = i;
			mi[i] = i;
			ma[i] = i;
			res += p[i] - i;
			while(k != i) {
				c[k] = i;
				res += abs(p[k]-k);
				mi[i] = min(mi[i], k);
				ma[i] = max(ma[i], k);
				k = p[k];
			}
		}
	}
	ii lr = explore(s,-1,-1,s,mi,ma,c);
	int l = lr.F; int r = lr.S;
	ll lc = 0; ll rc = 0;
	while(l || r < n-1) {
		bool b = 1;
		if(l) {
			lc += 2;
			lr = explore(l-1,l,r,r,mi,ma,c);
			l = lr.F;
			if(lr.S > r) {
				r = lr.S;
				b = 0;
				res += lc;
				rc = 0;
				lc = 0;
			}
		}
		if(r < n-1 && b) {
			rc += 2;
			lr = explore(l,l,r,r+1,mi,ma,c);
			r = lr.S;
			if(lr.F < l) {
				l = lr.F;
				res += rc;
				rc = 0;
				lc = 0;
			}
		}
	}
	for(int i = 0; i < s; i++) {
		if(p[i] == i) res -= 2;
		else break;
	}
	for(int i = n-1; i > s; i--) {
		if(p[i] == i) res -= 2;
		else break;
	}
	return res + lc + rc;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 145 ms 26588 KB Output is correct
31 Correct 210 ms 26596 KB Output is correct
32 Correct 102 ms 26572 KB Output is correct
33 Correct 106 ms 26584 KB Output is correct
34 Correct 103 ms 26592 KB Output is correct
35 Correct 113 ms 26580 KB Output is correct
36 Correct 115 ms 26464 KB Output is correct
37 Correct 100 ms 26592 KB Output is correct
38 Correct 103 ms 26572 KB Output is correct
39 Correct 113 ms 26588 KB Output is correct
40 Correct 102 ms 26572 KB Output is correct
41 Correct 114 ms 26468 KB Output is correct
42 Correct 118 ms 26584 KB Output is correct
43 Correct 107 ms 26700 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 296 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 300 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 300 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 296 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 296 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 145 ms 26588 KB Output is correct
31 Correct 210 ms 26596 KB Output is correct
32 Correct 102 ms 26572 KB Output is correct
33 Correct 106 ms 26584 KB Output is correct
34 Correct 103 ms 26592 KB Output is correct
35 Correct 113 ms 26580 KB Output is correct
36 Correct 115 ms 26464 KB Output is correct
37 Correct 100 ms 26592 KB Output is correct
38 Correct 103 ms 26572 KB Output is correct
39 Correct 113 ms 26588 KB Output is correct
40 Correct 102 ms 26572 KB Output is correct
41 Correct 114 ms 26468 KB Output is correct
42 Correct 118 ms 26584 KB Output is correct
43 Correct 107 ms 26700 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 2 ms 296 KB Output is correct
50 Correct 1 ms 300 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 300 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 300 KB Output is correct
56 Correct 1 ms 300 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 1 ms 212 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 300 KB Output is correct
64 Correct 98 ms 26588 KB Output is correct
65 Correct 104 ms 26468 KB Output is correct
66 Correct 105 ms 26588 KB Output is correct
67 Correct 104 ms 26596 KB Output is correct
68 Correct 13 ms 2812 KB Output is correct
69 Correct 10 ms 2732 KB Output is correct
70 Correct 10 ms 2732 KB Output is correct
71 Correct 10 ms 2736 KB Output is correct
72 Correct 10 ms 2772 KB Output is correct
73 Correct 11 ms 2816 KB Output is correct
74 Correct 115 ms 26592 KB Output is correct
75 Correct 117 ms 26584 KB Output is correct
76 Correct 126 ms 26660 KB Output is correct
77 Correct 113 ms 26588 KB Output is correct
78 Correct 107 ms 26472 KB Output is correct
79 Correct 107 ms 26572 KB Output is correct
80 Correct 132 ms 26700 KB Output is correct
81 Correct 107 ms 26588 KB Output is correct
82 Correct 107 ms 26700 KB Output is correct
83 Correct 105 ms 26468 KB Output is correct
84 Correct 109 ms 26584 KB Output is correct
85 Correct 105 ms 26592 KB Output is correct
86 Correct 107 ms 26584 KB Output is correct
87 Correct 108 ms 26584 KB Output is correct
88 Correct 105 ms 26472 KB Output is correct
89 Correct 124 ms 26596 KB Output is correct
90 Correct 116 ms 26588 KB Output is correct
91 Correct 111 ms 26580 KB Output is correct
92 Correct 107 ms 26472 KB Output is correct