#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <deque>
#include <map>
#include <set>
#include <complex>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <random>
#define ft first
#define sc second
#define pb push_back
#define len(v) (int)v.size()
#define int ll
using namespace std;
typedef long long ll;
int sgn(int x) {
if(x < 0)
return -1;
if(x == 0)
return 0;
return 1;
}
signed main() {
#ifdef PC
freopen("in.txt", "r", stdin);
freopen("out.txt", "w", stdout);
#endif
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n;
cin >> n;
vector<vector<int>> have(n, vector<int> (2, 0));
int ans = 0;
for (int i = 0; i < 2 * n; i++) {
int x, y;
cin >> x >> y;
if(y < 1)
ans += (1 - y), y = 1;
if(y > 2)
ans += (y - 2), y = 2;
if(x < 1)
ans += (1 - x), x = 1;
if(x > n)
ans += (x - n), x = n;
have[x - 1][y - 1]++;
}
// for (int j = 0; j < 2; j++) {
// for (int i = 0; i < n; i++) {
// cout << have[i][j] << " ";
// }
// cout << endl;
// }
// cout << ans << endl;
// ans = 0;
int top = 0, down = 0;
for (int i = 0; i < n; i++) {
top += have[i][0], down += have[i][1];
top--, down--;
// cout << i << " " << ans << " " << top << " " << down << endl;
if(top * down < 0) {
int per = min(abs(top), abs(down));
top += -1 * sgn(top) * per;
down += -1 * sgn(down) * per;
ans += per;
}
ans += abs(top) + abs(down);
}
cout << ans << '\n';
}
/*
if(have[i][0] == 0) {
for (int j = i + 1; j < n; j++) {
if(have[j][0] > 1) {
cout << "X " << i << " " << j << endl;
have[j][0]--;
ans += (j - i);
have[i][0] = 1;
break;
}
if(j == i + 1 && down != 0) {
down--;
ans += 1;
have[i][0] = 1;
break;
}
if(have[j - 1][1] > 1) {
have[j - 1][1]--;
ans += (j - i);
have[i][0] = 1;
break;
}
}
if(have[i][0] == 0) {
ans += (n - i);
have[i][0] = 1;
if(i != n - 1)
have[n - 1][1]--;
}
}
if(have[i][1] == 0) {
for (int j = i + 1; j < n; j++) {
if(have[j][1] > 1) {
have[j][1]--;
ans += (j - i);
have[i][1] = 1;
break;
}
if(j == i + 1 && top != 0) {
top--;
ans += 1;
have[i][1] = 1;
break;
}
if(have[j - 1][0] > 1) {
have[j - 1][0]--;
ans += (j - i);
have[i][1] = 1;
break;
}
}
if(have[i][1] == 0) {
have[i][1] = 1;
ans += (n - i);
if(i != n - 1)
have[n - 1][0]--;
}
}
if(i == n - 1)
break;
ans += top + down;
}
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
4 ms |
384 KB |
Output is correct |
14 |
Correct |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
4 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
4 ms |
384 KB |
Output is correct |
19 |
Correct |
4 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
4 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
27 |
Correct |
5 ms |
384 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
4 ms |
384 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
4 ms |
384 KB |
Output is correct |
32 |
Correct |
5 ms |
384 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
4 ms |
384 KB |
Output is correct |
14 |
Correct |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
4 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
4 ms |
384 KB |
Output is correct |
19 |
Correct |
4 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
4 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
27 |
Correct |
5 ms |
384 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
4 ms |
384 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
4 ms |
384 KB |
Output is correct |
32 |
Correct |
5 ms |
384 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
384 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
6 ms |
384 KB |
Output is correct |
37 |
Correct |
5 ms |
384 KB |
Output is correct |
38 |
Correct |
5 ms |
384 KB |
Output is correct |
39 |
Correct |
5 ms |
384 KB |
Output is correct |
40 |
Correct |
5 ms |
384 KB |
Output is correct |
41 |
Correct |
5 ms |
384 KB |
Output is correct |
42 |
Correct |
5 ms |
512 KB |
Output is correct |
43 |
Correct |
5 ms |
384 KB |
Output is correct |
44 |
Correct |
5 ms |
384 KB |
Output is correct |
45 |
Correct |
5 ms |
384 KB |
Output is correct |
46 |
Correct |
5 ms |
384 KB |
Output is correct |
47 |
Correct |
5 ms |
384 KB |
Output is correct |
48 |
Correct |
5 ms |
384 KB |
Output is correct |
49 |
Correct |
5 ms |
384 KB |
Output is correct |
50 |
Correct |
6 ms |
384 KB |
Output is correct |
51 |
Correct |
5 ms |
512 KB |
Output is correct |
52 |
Correct |
5 ms |
384 KB |
Output is correct |
53 |
Correct |
5 ms |
384 KB |
Output is correct |
54 |
Correct |
5 ms |
512 KB |
Output is correct |
55 |
Correct |
5 ms |
384 KB |
Output is correct |
56 |
Correct |
5 ms |
384 KB |
Output is correct |
57 |
Correct |
5 ms |
384 KB |
Output is correct |
58 |
Correct |
5 ms |
384 KB |
Output is correct |
59 |
Correct |
5 ms |
384 KB |
Output is correct |
60 |
Correct |
5 ms |
384 KB |
Output is correct |
61 |
Correct |
5 ms |
384 KB |
Output is correct |
62 |
Correct |
5 ms |
384 KB |
Output is correct |
63 |
Correct |
5 ms |
384 KB |
Output is correct |
64 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
4 ms |
384 KB |
Output is correct |
14 |
Correct |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
4 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
4 ms |
384 KB |
Output is correct |
19 |
Correct |
4 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
4 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
27 |
Correct |
5 ms |
384 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
4 ms |
384 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
4 ms |
384 KB |
Output is correct |
32 |
Correct |
5 ms |
384 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
384 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
6 ms |
384 KB |
Output is correct |
37 |
Correct |
5 ms |
384 KB |
Output is correct |
38 |
Correct |
5 ms |
384 KB |
Output is correct |
39 |
Correct |
5 ms |
384 KB |
Output is correct |
40 |
Correct |
5 ms |
384 KB |
Output is correct |
41 |
Correct |
5 ms |
384 KB |
Output is correct |
42 |
Correct |
5 ms |
512 KB |
Output is correct |
43 |
Correct |
5 ms |
384 KB |
Output is correct |
44 |
Correct |
5 ms |
384 KB |
Output is correct |
45 |
Correct |
5 ms |
384 KB |
Output is correct |
46 |
Correct |
5 ms |
384 KB |
Output is correct |
47 |
Correct |
5 ms |
384 KB |
Output is correct |
48 |
Correct |
5 ms |
384 KB |
Output is correct |
49 |
Correct |
5 ms |
384 KB |
Output is correct |
50 |
Correct |
6 ms |
384 KB |
Output is correct |
51 |
Correct |
5 ms |
512 KB |
Output is correct |
52 |
Correct |
5 ms |
384 KB |
Output is correct |
53 |
Correct |
5 ms |
384 KB |
Output is correct |
54 |
Correct |
5 ms |
512 KB |
Output is correct |
55 |
Correct |
5 ms |
384 KB |
Output is correct |
56 |
Correct |
5 ms |
384 KB |
Output is correct |
57 |
Correct |
5 ms |
384 KB |
Output is correct |
58 |
Correct |
5 ms |
384 KB |
Output is correct |
59 |
Correct |
5 ms |
384 KB |
Output is correct |
60 |
Correct |
5 ms |
384 KB |
Output is correct |
61 |
Correct |
5 ms |
384 KB |
Output is correct |
62 |
Correct |
5 ms |
384 KB |
Output is correct |
63 |
Correct |
5 ms |
384 KB |
Output is correct |
64 |
Correct |
5 ms |
384 KB |
Output is correct |
65 |
Correct |
68 ms |
7416 KB |
Output is correct |
66 |
Correct |
82 ms |
10484 KB |
Output is correct |
67 |
Correct |
77 ms |
8952 KB |
Output is correct |
68 |
Correct |
75 ms |
8952 KB |
Output is correct |
69 |
Correct |
88 ms |
9080 KB |
Output is correct |
70 |
Correct |
81 ms |
9080 KB |
Output is correct |
71 |
Correct |
83 ms |
9080 KB |
Output is correct |
72 |
Correct |
69 ms |
9084 KB |
Output is correct |
73 |
Correct |
66 ms |
9080 KB |
Output is correct |
74 |
Correct |
67 ms |
9080 KB |
Output is correct |
75 |
Correct |
70 ms |
8952 KB |
Output is correct |
76 |
Correct |
68 ms |
9080 KB |
Output is correct |
77 |
Correct |
67 ms |
8952 KB |
Output is correct |
78 |
Correct |
67 ms |
9084 KB |
Output is correct |
79 |
Correct |
70 ms |
9080 KB |
Output is correct |
80 |
Correct |
67 ms |
9208 KB |
Output is correct |
81 |
Correct |
68 ms |
9080 KB |
Output is correct |
82 |
Correct |
68 ms |
9208 KB |
Output is correct |
83 |
Correct |
67 ms |
9080 KB |
Output is correct |
84 |
Correct |
66 ms |
9080 KB |
Output is correct |
85 |
Correct |
67 ms |
8944 KB |
Output is correct |
86 |
Correct |
70 ms |
8952 KB |
Output is correct |
87 |
Correct |
76 ms |
9080 KB |
Output is correct |
88 |
Correct |
71 ms |
9080 KB |
Output is correct |
89 |
Correct |
72 ms |
8952 KB |
Output is correct |
90 |
Correct |
76 ms |
8956 KB |
Output is correct |
91 |
Correct |
79 ms |
8952 KB |
Output is correct |
92 |
Correct |
78 ms |
9208 KB |
Output is correct |
93 |
Correct |
91 ms |
9212 KB |
Output is correct |
94 |
Correct |
81 ms |
8952 KB |
Output is correct |
95 |
Correct |
89 ms |
8952 KB |
Output is correct |
96 |
Correct |
68 ms |
9080 KB |
Output is correct |
97 |
Correct |
70 ms |
9080 KB |
Output is correct |
98 |
Correct |
74 ms |
9080 KB |
Output is correct |
99 |
Correct |
71 ms |
9080 KB |
Output is correct |
100 |
Correct |
69 ms |
9072 KB |
Output is correct |
101 |
Correct |
69 ms |
9080 KB |
Output is correct |
102 |
Correct |
71 ms |
9080 KB |
Output is correct |
103 |
Correct |
71 ms |
9080 KB |
Output is correct |