#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define fi first
#define se second
#define SZ(x) ((int)((x).size()))
#define debug(x) cerr << #x << " = " << x << '\n'
const int mx = 1e5+5;
int ct[mx][2], tot[2];
int main() {
ios::sync_with_stdio(0); cin.tie(0);
int n;
cin >> n;
ll ans = 0;
for (int q = 0; q < 2*n; q++) {
int a,b;
cin >> a >> b;
int x = a, y = b;
if (a < 1) ans += 1-a, x = 1;
if (a > n) ans += a-n, x = n;
if (b < 1) ans += 1-b, y = 1;
if (b > 2) ans += b-2, y = 2;
y--;
ct[x][y]++;
}
for (int q = 1; q <= n; q++) for (int w = 0; w <= 1; w++) ct[q][w]--;
int t = 0; //0 = coin, 1 = blank
for (int q = 1; q <= n; q++) {
ans += tot[0]+tot[1];
if (t == 0) {
if (ct[q][0] > 0) tot[0] += ct[q][0], ct[q][0] = 0;
if (ct[q][1] > 0) tot[1] += ct[q][1], ct[q][1] = 0;
if (ct[q][0] < 0 && tot[0] > 0) tot[0]--, ct[q][0] = 0;
if (ct[q][1] < 0 && tot[1] > 0) tot[1]--, ct[q][1] = 0;
if (ct[q][0] == -1 && tot[1] > 0) ans++, ct[q][0] = 0, tot[1]--;
if (ct[q][1] == -1 && tot[0] > 0) ans++, ct[q][1] = 0, tot[0]--;
if (ct[q][0] == -1 || ct[q][1] == -1) t = 1, tot[0] = -ct[q][0], tot[1] = -ct[q][1];
} else {
if (ct[q][0] < 0) tot[0]++, ct[q][0] = 0;
if (ct[q][1] < 0) tot[1]++, ct[q][1] = 0;
if (ct[q][0] > 0 && tot[0] > 0) {
int x = min(ct[q][0], tot[0]);
ct[q][0] -= x;
tot[0] -= x;
}
if (ct[q][1] > 0 && tot[1] > 0) {
int x = min(ct[q][1], tot[1]);
ct[q][1] -= x;
tot[1] -= x;
}
if (ct[q][1] > 0 && tot[0] > 0) {
int x = min(ct[q][1], tot[0]);
ct[q][1] -= x;
tot[0] -= x;
ans += x;
}
if (ct[q][0] > 0 && tot[1] > 0) {
int x = min(ct[q][0], tot[1]);
ct[q][0] -= x;
tot[1] -= x;
ans += x;
}
if (ct[q][0] > 0 || ct[q][1] > 0) t = 0, tot[0] = ct[q][0], tot[1] = ct[q][1];
}
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
1 ms |
204 KB |
Output is correct |
28 |
Correct |
1 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
1 ms |
204 KB |
Output is correct |
28 |
Correct |
1 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
2 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
37 |
Correct |
1 ms |
360 KB |
Output is correct |
38 |
Correct |
1 ms |
332 KB |
Output is correct |
39 |
Correct |
1 ms |
332 KB |
Output is correct |
40 |
Correct |
1 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
332 KB |
Output is correct |
42 |
Correct |
1 ms |
332 KB |
Output is correct |
43 |
Correct |
1 ms |
332 KB |
Output is correct |
44 |
Correct |
1 ms |
336 KB |
Output is correct |
45 |
Correct |
1 ms |
332 KB |
Output is correct |
46 |
Correct |
1 ms |
332 KB |
Output is correct |
47 |
Correct |
1 ms |
332 KB |
Output is correct |
48 |
Correct |
1 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
356 KB |
Output is correct |
50 |
Correct |
1 ms |
332 KB |
Output is correct |
51 |
Correct |
1 ms |
336 KB |
Output is correct |
52 |
Correct |
1 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
332 KB |
Output is correct |
54 |
Correct |
1 ms |
332 KB |
Output is correct |
55 |
Correct |
1 ms |
332 KB |
Output is correct |
56 |
Correct |
1 ms |
332 KB |
Output is correct |
57 |
Correct |
1 ms |
332 KB |
Output is correct |
58 |
Correct |
1 ms |
332 KB |
Output is correct |
59 |
Correct |
1 ms |
332 KB |
Output is correct |
60 |
Correct |
1 ms |
364 KB |
Output is correct |
61 |
Correct |
1 ms |
332 KB |
Output is correct |
62 |
Correct |
1 ms |
332 KB |
Output is correct |
63 |
Correct |
2 ms |
332 KB |
Output is correct |
64 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
320 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
1 ms |
204 KB |
Output is correct |
28 |
Correct |
1 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
2 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
37 |
Correct |
1 ms |
360 KB |
Output is correct |
38 |
Correct |
1 ms |
332 KB |
Output is correct |
39 |
Correct |
1 ms |
332 KB |
Output is correct |
40 |
Correct |
1 ms |
332 KB |
Output is correct |
41 |
Correct |
1 ms |
332 KB |
Output is correct |
42 |
Correct |
1 ms |
332 KB |
Output is correct |
43 |
Correct |
1 ms |
332 KB |
Output is correct |
44 |
Correct |
1 ms |
336 KB |
Output is correct |
45 |
Correct |
1 ms |
332 KB |
Output is correct |
46 |
Correct |
1 ms |
332 KB |
Output is correct |
47 |
Correct |
1 ms |
332 KB |
Output is correct |
48 |
Correct |
1 ms |
332 KB |
Output is correct |
49 |
Correct |
1 ms |
356 KB |
Output is correct |
50 |
Correct |
1 ms |
332 KB |
Output is correct |
51 |
Correct |
1 ms |
336 KB |
Output is correct |
52 |
Correct |
1 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
332 KB |
Output is correct |
54 |
Correct |
1 ms |
332 KB |
Output is correct |
55 |
Correct |
1 ms |
332 KB |
Output is correct |
56 |
Correct |
1 ms |
332 KB |
Output is correct |
57 |
Correct |
1 ms |
332 KB |
Output is correct |
58 |
Correct |
1 ms |
332 KB |
Output is correct |
59 |
Correct |
1 ms |
332 KB |
Output is correct |
60 |
Correct |
1 ms |
364 KB |
Output is correct |
61 |
Correct |
1 ms |
332 KB |
Output is correct |
62 |
Correct |
1 ms |
332 KB |
Output is correct |
63 |
Correct |
2 ms |
332 KB |
Output is correct |
64 |
Correct |
1 ms |
332 KB |
Output is correct |
65 |
Correct |
37 ms |
2612 KB |
Output is correct |
66 |
Correct |
72 ms |
5700 KB |
Output is correct |
67 |
Correct |
54 ms |
4164 KB |
Output is correct |
68 |
Correct |
53 ms |
4152 KB |
Output is correct |
69 |
Correct |
53 ms |
4164 KB |
Output is correct |
70 |
Correct |
53 ms |
4164 KB |
Output is correct |
71 |
Correct |
57 ms |
4284 KB |
Output is correct |
72 |
Correct |
50 ms |
4264 KB |
Output is correct |
73 |
Correct |
52 ms |
4276 KB |
Output is correct |
74 |
Correct |
69 ms |
4280 KB |
Output is correct |
75 |
Correct |
52 ms |
4188 KB |
Output is correct |
76 |
Correct |
50 ms |
4288 KB |
Output is correct |
77 |
Correct |
54 ms |
4144 KB |
Output is correct |
78 |
Correct |
51 ms |
4288 KB |
Output is correct |
79 |
Correct |
53 ms |
4276 KB |
Output is correct |
80 |
Correct |
50 ms |
4288 KB |
Output is correct |
81 |
Correct |
52 ms |
4292 KB |
Output is correct |
82 |
Correct |
51 ms |
4180 KB |
Output is correct |
83 |
Correct |
55 ms |
4176 KB |
Output is correct |
84 |
Correct |
53 ms |
4164 KB |
Output is correct |
85 |
Correct |
51 ms |
4212 KB |
Output is correct |
86 |
Correct |
53 ms |
4148 KB |
Output is correct |
87 |
Correct |
52 ms |
4160 KB |
Output is correct |
88 |
Correct |
52 ms |
4164 KB |
Output is correct |
89 |
Correct |
54 ms |
4148 KB |
Output is correct |
90 |
Correct |
54 ms |
4148 KB |
Output is correct |
91 |
Correct |
56 ms |
4164 KB |
Output is correct |
92 |
Correct |
51 ms |
4292 KB |
Output is correct |
93 |
Correct |
52 ms |
4276 KB |
Output is correct |
94 |
Correct |
55 ms |
4144 KB |
Output is correct |
95 |
Correct |
52 ms |
4156 KB |
Output is correct |
96 |
Correct |
53 ms |
4292 KB |
Output is correct |
97 |
Correct |
55 ms |
4276 KB |
Output is correct |
98 |
Correct |
51 ms |
4212 KB |
Output is correct |
99 |
Correct |
55 ms |
4292 KB |
Output is correct |
100 |
Correct |
51 ms |
4260 KB |
Output is correct |
101 |
Correct |
54 ms |
4236 KB |
Output is correct |
102 |
Correct |
54 ms |
4292 KB |
Output is correct |
103 |
Correct |
50 ms |
4292 KB |
Output is correct |