oj.uz

Submission #300168

# Submission time Handle Problem Language Result Execution time Memory
300168 2020-09-16T22:07:06 Z model_code Carnival Tickets (IOI20_tickets) Java 11
100 / 100
 991 ms 121900 KB 
// yanhao-full
class tickets {
	int c,k,s;

	int count_lower(int[] x, int target) {
		int low = -1;
		int high = x.length;
		while(high-low>1) {
			int mid = (low+high)/2;
			if(x[mid] < target) {
				low = mid;
			} else {
				high = mid;
			}
		}
		return high;
	}
	
	int count = 0;
	int get_median(int[][] arr) {
		int low = -1;
		int high = (int)2e9;
		int target = -1;
		int bigger = 0;
		int smaller = 0;
		while(high-low>1) {
			smaller = 0;
			bigger = 0;
			target = low + (high-low)/2;
			for(int i=0; i<arr.length; i++) {
				smaller += count_lower(arr[i], target);
				bigger += count_lower(arr[i], target+1);
			}
			if(smaller > c*k/2) {
				high = target;
			} else if(bigger < c*k/2) {
				low = target;
			} else {
				break;
			}
		}
		count = smaller; 
		return target;
	}
	
	long find_maximum(int _k, int[][] d) {
		k = _k;
		c = d.length;
		s = d[0].length;
		int[][] sums = new int[c][k];
		for(int i=0; i<c; i++) {
			for(int j=0; j<k; j++) {
				sums[i][j] = d[i][j] + d[i][s-k+j];
			}
		}
		int median = get_median(sums);
		long ans = 0;
		
		int minus_day = 0;
		int plus_day = c*k-1;
		int[][] ret = new int[c][s];

		for(int i=0; i<c; i++) {
			int j=0;
			for(;j<k && sums[i][j]<median; j++) {
				ret[i][j] = minus_day % k;
				minus_day++;
				ans -= d[i][j];
			}
			for(;j<k && sums[i][j] == median && count < c*k/2; j++) {
				ret[i][j] = minus_day % k;
				minus_day++;
				count++;
				ans -= d[i][j];	
			}
			for(int l=j; l<s-k+j; l++) {
				ret[i][l] = -1;
			}
			for(j=s-k+j; j<s; j++) {
				ret[i][j] = plus_day % k;
				plus_day--;
				ans += d[i][j];
			}
		}

		grader.allocate_tickets(ret);
		return ans;
	}
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 10096 KB Output is correct
2 Correct 83 ms 10276 KB Output is correct
3 Correct 81 ms 10148 KB Output is correct
4 Correct 85 ms 9976 KB Output is correct
5 Correct 92 ms 10348 KB Output is correct
6 Correct 102 ms 10764 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 10088 KB Output is correct
2 Correct 85 ms 10164 KB Output is correct
3 Correct 84 ms 10020 KB Output is correct
4 Correct 129 ms 11468 KB Output is correct
5 Correct 259 ms 18644 KB Output is correct
6 Correct 889 ms 111648 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 10260 KB Output is correct
2 Correct 92 ms 10264 KB Output is correct
3 Correct 84 ms 10304 KB Output is correct
4 Correct 133 ms 11620 KB Output is correct
5 Correct 231 ms 19944 KB Output is correct
6 Correct 868 ms 112300 KB Output is correct
7 Correct 814 ms 121348 KB Output is correct
8 Correct 132 ms 12388 KB Output is correct
9 Correct 85 ms 10260 KB Output is correct
10 Correct 85 ms 10104 KB Output is correct
11 Correct 91 ms 10164 KB Output is correct
12 Correct 193 ms 15288 KB Output is correct
13 Correct 262 ms 19896 KB Output is correct
14 Correct 269 ms 20168 KB Output is correct
15 Correct 753 ms 89332 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 10100 KB Output is correct
2 Correct 83 ms 10236 KB Output is correct
3 Correct 81 ms 10144 KB Output is correct
4 Correct 114 ms 11820 KB Output is correct
5 Correct 274 ms 20384 KB Output is correct
6 Correct 129 ms 11712 KB Output is correct
7 Correct 174 ms 13448 KB Output is correct
8 Correct 933 ms 121900 KB Output is correct
9 Correct 991 ms 119368 KB Output is correct
10 Correct 872 ms 120500 KB Output is correct
11 Correct 893 ms 89812 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 10248 KB Output is correct
2 Correct 113 ms 11124 KB Output is correct
3 Correct 120 ms 11244 KB Output is correct
4 Correct 116 ms 11128 KB Output is correct
5 Correct 109 ms 11412 KB Output is correct
6 Correct 112 ms 11492 KB Output is correct
7 Correct 97 ms 10548 KB Output is correct
8 Correct 85 ms 10420 KB Output is correct
9 Correct 118 ms 11064 KB Output is correct
10 Correct 125 ms 12536 KB Output is correct
11 Correct 118 ms 11272 KB Output is correct
12 Correct 115 ms 11344 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 10248 KB Output is correct
2 Correct 113 ms 11124 KB Output is correct
3 Correct 120 ms 11244 KB Output is correct
4 Correct 116 ms 11128 KB Output is correct
5 Correct 109 ms 11412 KB Output is correct
6 Correct 112 ms 11492 KB Output is correct
7 Correct 97 ms 10548 KB Output is correct
8 Correct 85 ms 10420 KB Output is correct
9 Correct 118 ms 11064 KB Output is correct
10 Correct 125 ms 12536 KB Output is correct
11 Correct 118 ms 11272 KB Output is correct
12 Correct 115 ms 11344 KB Output is correct
13 Correct 222 ms 18736 KB Output is correct
14 Correct 212 ms 20092 KB Output is correct
15 Correct 210 ms 20188 KB Output is correct
16 Correct 284 ms 19508 KB Output is correct
17 Correct 108 ms 11040 KB Output is correct
18 Correct 132 ms 12288 KB Output is correct
19 Correct 115 ms 11284 KB Output is correct
20 Correct 283 ms 20736 KB Output is correct
21 Correct 263 ms 19116 KB Output is correct
22 Correct 308 ms 21348 KB Output is correct
23 Correct 318 ms 21620 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 10096 KB Output is correct
2 Correct 83 ms 10276 KB Output is correct
3 Correct 81 ms 10148 KB Output is correct
4 Correct 85 ms 9976 KB Output is correct
5 Correct 92 ms 10348 KB Output is correct
6 Correct 102 ms 10764 KB Output is correct
7 Correct 86 ms 10088 KB Output is correct
8 Correct 85 ms 10164 KB Output is correct
9 Correct 84 ms 10020 KB Output is correct
10 Correct 129 ms 11468 KB Output is correct
11 Correct 259 ms 18644 KB Output is correct
12 Correct 889 ms 111648 KB Output is correct
13 Correct 80 ms 10260 KB Output is correct
14 Correct 92 ms 10264 KB Output is correct
15 Correct 84 ms 10304 KB Output is correct
16 Correct 133 ms 11620 KB Output is correct
17 Correct 231 ms 19944 KB Output is correct
18 Correct 868 ms 112300 KB Output is correct
19 Correct 814 ms 121348 KB Output is correct
20 Correct 132 ms 12388 KB Output is correct
21 Correct 85 ms 10260 KB Output is correct
22 Correct 85 ms 10104 KB Output is correct
23 Correct 91 ms 10164 KB Output is correct
24 Correct 193 ms 15288 KB Output is correct
25 Correct 262 ms 19896 KB Output is correct
26 Correct 269 ms 20168 KB Output is correct
27 Correct 753 ms 89332 KB Output is correct
28 Correct 82 ms 10100 KB Output is correct
29 Correct 83 ms 10236 KB Output is correct
30 Correct 81 ms 10144 KB Output is correct
31 Correct 114 ms 11820 KB Output is correct
32 Correct 274 ms 20384 KB Output is correct
33 Correct 129 ms 11712 KB Output is correct
34 Correct 174 ms 13448 KB Output is correct
35 Correct 933 ms 121900 KB Output is correct
36 Correct 991 ms 119368 KB Output is correct
37 Correct 872 ms 120500 KB Output is correct
38 Correct 893 ms 89812 KB Output is correct
39 Correct 79 ms 10248 KB Output is correct
40 Correct 113 ms 11124 KB Output is correct
41 Correct 120 ms 11244 KB Output is correct
42 Correct 116 ms 11128 KB Output is correct
43 Correct 109 ms 11412 KB Output is correct
44 Correct 112 ms 11492 KB Output is correct
45 Correct 97 ms 10548 KB Output is correct
46 Correct 85 ms 10420 KB Output is correct
47 Correct 118 ms 11064 KB Output is correct
48 Correct 125 ms 12536 KB Output is correct
49 Correct 118 ms 11272 KB Output is correct
50 Correct 115 ms 11344 KB Output is correct
51 Correct 222 ms 18736 KB Output is correct
52 Correct 212 ms 20092 KB Output is correct
53 Correct 210 ms 20188 KB Output is correct
54 Correct 284 ms 19508 KB Output is correct
55 Correct 108 ms 11040 KB Output is correct
56 Correct 132 ms 12288 KB Output is correct
57 Correct 115 ms 11284 KB Output is correct
58 Correct 283 ms 20736 KB Output is correct
59 Correct 263 ms 19116 KB Output is correct
60 Correct 308 ms 21348 KB Output is correct
61 Correct 318 ms 21620 KB Output is correct
62 Correct 369 ms 30440 KB Output is correct
63 Correct 336 ms 26328 KB Output is correct
64 Correct 428 ms 32800 KB Output is correct
65 Correct 660 ms 60196 KB Output is correct
66 Correct 638 ms 60896 KB Output is correct
67 Correct 135 ms 11916 KB Output is correct
68 Correct 123 ms 11692 KB Output is correct
69 Correct 884 ms 110508 KB Output is correct
70 Correct 865 ms 111912 KB Output is correct
71 Correct 989 ms 90560 KB Output is correct
72 Correct 844 ms 121636 KB Output is correct
73 Correct 926 ms 121612 KB Output is correct
74 Correct 773 ms 111336 KB Output is correct
75 Correct 920 ms 112876 KB Output is correct