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답안 #332844

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
332844 2020-12-03T17:06:15 Z ace_in_the_hole Coin Collecting (JOI19_ho_t4) C++14
100 / 100
 61 ms 5868 KB 
#include<bits/stdc++.h>
using namespace std;

typedef long long Int;
const int MAX = 2e5 + 500;
int cnt[MAX][2];

int SIGN(int x) {
	if (x) return x / abs(x); return 0;
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	Int answer = 0;
	
	int n;	cin >> n;
	
	for (int i = 0; i < n + n; i++) {
		int x, y;
		cin >> x >> y;
		if (x < 1) answer += 1 - x, x = 1;
		if (x > n) answer += x - n, x = n;
		if (y < 1) answer += 1 - y, y = 1;
		if (y > 2) answer += y - 2, y = 2;
//		cerr << '(' << x << ',' << y << ")\n";
		cnt[--x][--y]++;
	}
	
	for (int i = 0; i < n; i++) for (int j = 0; j < 2; j++) {
		cnt[i][j]--;
//		cerr << "(" << i + 1 << ',' << j + 1 << ") gives " << cnt[i][j] << '\n';	
	}

	for (int i = 0; i + 1 < n; i++) {
		if (SIGN(cnt[i][0]) == SIGN(cnt[i][1])) {
//			cerr << cnt[i][0] << '/' << cnt[i][1] << '\n';
			answer += abs(cnt[i][0]) + abs(cnt[i][1]);
//			cerr << "ans += " << abs(cnt[i][0]) + abs(cnt[i][1]) << '\n';
			cnt[i + 1][0] += cnt[i][0];
			cnt[i + 1][1] += cnt[i][1];
		} else {
//			cerr << "steps to zero(s) : " << min(abs(cnt[i][0]), abs(cnt[i][1])) << '\n';
			if (abs(cnt[i][0]) <= abs(cnt[i][1])) {
				answer += abs(cnt[i][0]);
				cnt[i][1] += cnt[i][0];
				answer += abs(cnt[i][1]);
				cnt[i + 1][1] += cnt[i][1];
			} else {
				answer += abs(cnt[i][1]);
				cnt[i][0] += cnt[i][1];
				answer += abs(cnt[i][0]);
				cnt[i + 1][0] += cnt[i][0];
			}
		}
	}
	
	assert(cnt[n - 1][0] + cnt[n - 1][1] == 0);
	answer += abs(cnt[n - 1][0]);
	cout << answer;
}
/*
5
1000000000 1000000000
-1000000000 1000000000
-1000000000 -1000000000
1000000000 -1000000000
-1 -5
-2 2
2 8
4 7
-2 5
7 3

4
2 1
2 1
2 1
3 1
3 1
3 1
3 1
3 1
*/

Compilation message

joi2019_ho_t4.cpp: In function 'int SIGN(int)':
joi2019_ho_t4.cpp:9:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    9 |  if (x) return x / abs(x); return 0;
      |  ^~
joi2019_ho_t4.cpp:9:28: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    9 |  if (x) return x / abs(x); return 0;
      |                            ^~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 376 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 376 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 1 ms 364 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct

Subtask #3
63.0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 376 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 1 ms 364 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 35 ms 2668 KB Output is correct
66 Correct 61 ms 5868 KB Output is correct
67 Correct 47 ms 4352 KB Output is correct
68 Correct 52 ms 4332 KB Output is correct
69 Correct 48 ms 4332 KB Output is correct
70 Correct 52 ms 4332 KB Output is correct
71 Correct 48 ms 4332 KB Output is correct
72 Correct 48 ms 4332 KB Output is correct
73 Correct 46 ms 4332 KB Output is correct
74 Correct 46 ms 4332 KB Output is correct
75 Correct 47 ms 4204 KB Output is correct
76 Correct 46 ms 4332 KB Output is correct
77 Correct 48 ms 4204 KB Output is correct
78 Correct 49 ms 4332 KB Output is correct
79 Correct 48 ms 4332 KB Output is correct
80 Correct 46 ms 4332 KB Output is correct
81 Correct 47 ms 4332 KB Output is correct
82 Correct 46 ms 4332 KB Output is correct
83 Correct 48 ms 4332 KB Output is correct
84 Correct 47 ms 4352 KB Output is correct
85 Correct 48 ms 4332 KB Output is correct
86 Correct 47 ms 4332 KB Output is correct
87 Correct 48 ms 4332 KB Output is correct
88 Correct 48 ms 4332 KB Output is correct
89 Correct 48 ms 4332 KB Output is correct
90 Correct 48 ms 4332 KB Output is correct
91 Correct 47 ms 4332 KB Output is correct
92 Correct 47 ms 4460 KB Output is correct
93 Correct 46 ms 4332 KB Output is correct
94 Correct 49 ms 4204 KB Output is correct
95 Correct 49 ms 4204 KB Output is correct
96 Correct 46 ms 4332 KB Output is correct
97 Correct 48 ms 4332 KB Output is correct
98 Correct 52 ms 4352 KB Output is correct
99 Correct 47 ms 4332 KB Output is correct
100 Correct 52 ms 4332 KB Output is correct
101 Correct 50 ms 4332 KB Output is correct
102 Correct 47 ms 4332 KB Output is correct
103 Correct 46 ms 4332 KB Output is correct