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Submission #256326

# Submission time Handle Problem Language Result Execution time Memory
256326 2020-08-02T14:29:33 Z Saboon Brunhilda’s Birthday (BOI13_brunhilda) C++14
100 / 100
 400 ms 80760 KB 
#include <bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
 
const int maxn = 1e7 + 10;

int r[maxn], dp[maxn];
bitset<maxn> mark;
 
int main(){
	ios_base::sync_with_stdio(false);
	int m, q;
	scanf("%d%d", &m, &q);
	int n = 10*1000*1000;
	while (m --){
		int x;
		scanf("%d", &x);
		if (mark[x])
			continue;
		mark[x] = 1;
		for (int i = 0; i <= n; i += x)
			r[i] = max(r[i], i+x);
	}
	for (int i = 1; i <= n; i++)
		r[i] = max(r[i], r[i-1]);
	int mxm = n+1;
	int last = 0;
	for (int i = 1; i <= n; i++){
		if (r[last] <= i)
			last = i-1;
		if (r[last] == i){
			mxm = i;
			break;
		}
		dp[i] = dp[last] + 1;
	}
	while (q --){
		int x;
		scanf("%d", &x);
		if (x >= mxm)
			printf("oo\n");
		else
			printf("%d\n", dp[x]);
	}
}

Compilation message

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &m, &q);
  ~~~~~^~~~~~~~~~~~~~~~
brunhilda.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~
brunhilda.cpp:40:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 39544 KB Output is correct
2 Correct 128 ms 78584 KB Output is correct
3 Correct 87 ms 40568 KB Output is correct
4 Correct 106 ms 78712 KB Output is correct
5 Correct 126 ms 78572 KB Output is correct
6 Correct 71 ms 39544 KB Output is correct
7 Correct 97 ms 40568 KB Output is correct
8 Correct 108 ms 43000 KB Output is correct
9 Correct 146 ms 78584 KB Output is correct
10 Correct 174 ms 78580 KB Output is correct
11 Correct 166 ms 78580 KB Output is correct
12 Correct 119 ms 78584 KB Output is correct
13 Correct 297 ms 78584 KB Output is correct
14 Correct 282 ms 78840 KB Output is correct
15 Correct 149 ms 78584 KB Output is correct
16 Correct 141 ms 78588 KB Output is correct
17 Correct 160 ms 78712 KB Output is correct
18 Correct 102 ms 78720 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 78840 KB Output is correct
2 Correct 154 ms 79864 KB Output is correct
3 Correct 286 ms 78840 KB Output is correct
4 Correct 130 ms 78584 KB Output is correct
5 Correct 255 ms 78840 KB Output is correct
6 Correct 133 ms 78712 KB Output is correct
7 Correct 115 ms 78840 KB Output is correct
8 Correct 134 ms 78584 KB Output is correct
9 Correct 252 ms 78844 KB Output is correct
10 Correct 307 ms 78832 KB Output is correct
11 Correct 285 ms 78712 KB Output is correct
12 Correct 209 ms 78584 KB Output is correct
13 Correct 118 ms 78712 KB Output is correct
14 Correct 153 ms 78584 KB Output is correct
15 Correct 320 ms 78840 KB Output is correct
16 Correct 162 ms 79864 KB Output is correct
17 Correct 290 ms 78584 KB Output is correct
18 Correct 296 ms 79096 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 305 ms 79096 KB Output is correct
2 Correct 336 ms 78968 KB Output is correct
3 Correct 316 ms 79352 KB Output is correct
4 Correct 214 ms 79352 KB Output is correct
5 Correct 173 ms 79736 KB Output is correct
6 Correct 312 ms 79224 KB Output is correct
7 Correct 285 ms 79352 KB Output is correct
8 Correct 291 ms 79100 KB Output is correct
9 Correct 295 ms 79096 KB Output is correct
10 Correct 215 ms 78840 KB Output is correct
11 Correct 202 ms 78840 KB Output is correct
12 Correct 271 ms 78840 KB Output is correct
13 Correct 365 ms 79228 KB Output is correct
14 Correct 229 ms 79612 KB Output is correct
15 Correct 233 ms 78840 KB Output is correct
16 Correct 275 ms 78968 KB Output is correct
17 Correct 231 ms 78972 KB Output is correct
18 Correct 295 ms 78968 KB Output is correct
19 Correct 117 ms 78840 KB Output is correct
20 Correct 307 ms 79096 KB Output is correct
21 Correct 215 ms 79484 KB Output is correct
22 Correct 354 ms 79264 KB Output is correct
23 Correct 179 ms 79144 KB Output is correct
24 Correct 153 ms 79096 KB Output is correct
25 Correct 227 ms 79096 KB Output is correct
26 Correct 207 ms 78976 KB Output is correct
27 Correct 331 ms 79460 KB Output is correct
28 Correct 157 ms 79164 KB Output is correct
29 Correct 400 ms 79224 KB Output is correct
30 Correct 322 ms 79368 KB Output is correct
31 Correct 229 ms 79352 KB Output is correct
32 Correct 179 ms 79696 KB Output is correct
33 Correct 148 ms 79736 KB Output is correct
34 Correct 251 ms 80248 KB Output is correct
35 Correct 155 ms 79784 KB Output is correct
36 Correct 379 ms 80336 KB Output is correct
37 Correct 179 ms 80760 KB Output is correct
38 Correct 268 ms 79736 KB Output is correct
39 Correct 154 ms 79736 KB Output is correct
40 Correct 235 ms 79704 KB Output is correct
41 Correct 226 ms 80376 KB Output is correct
42 Correct 283 ms 79864 KB Output is correct