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답안 #545563

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
545563 2022-04-04T21:24:46 Z MilosMilutinovic Bootfall (IZhO17_bootfall) C++14
100 / 100
 384 ms 4484 KB 
#include<bits/stdc++.h>

#define fi first
#define se second
#define mp make_pair
#define pb push_back

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

template<typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;}
template<typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;}

const int md=1e9+7;
int n,a[505],dp[505*505],cc[505*505],ndp[505*505];

void chkadd(int&x,int y){x+=y; if(x>md) x-=md;}
void chksub(int&x,int y){x-=y; if(x<0) x+=md;}

int main(){
	scanf("%d",&n);
	dp[0]=1;
	int s=0;
	for(int i=1;i<=n;i++){
		scanf("%d",&a[i]);
		for(int j=505*505-1;j>=a[i];j--) chkadd(dp[j],dp[j-a[i]]);
		s+=a[i];
	}
	if((s&1)||!dp[s/2]){printf("0"); return 0;}
	for(int i=1;i<=n;i++){
		for(int j=0;j<505*505;j++) ndp[j]=dp[j];
		for(int j=0;j<505*505-a[i];j++) chksub(ndp[j+a[i]],ndp[j]);
		for(int j=0;j<505*505;j++){
			int ns=s-a[i]+j;
			if(ns/2-j>=0&&ns%2==0&&ndp[ns/2-j]) cc[j]++;
		}
	}
	vector<int> ans;
	for(int i=0;i<505*505;i++) if(cc[i]==n) ans.pb(i);
	printf("%d\n",ans.size());
	for(int i=0;i<ans.size();i++) printf("%d ",ans[i]);
	return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:44:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   44 |  printf("%d\n",ans.size());
      |          ~^    ~~~~~~~~~~
      |           |            |
      |           int          std::vector<int>::size_type {aka long unsigned int}
      |          %ld
bootfall.cpp:45:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |  for(int i=0;i<ans.size();i++) printf("%d ",ans[i]);
      |              ~^~~~~~~~~~~
bootfall.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
bootfall.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   scanf("%d",&a[i]);
      |   ~~~~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct
10 Correct 22 ms 2260 KB Output is correct
11 Correct 24 ms 2212 KB Output is correct
12 Correct 23 ms 2300 KB Output is correct
13 Correct 20 ms 2204 KB Output is correct
14 Correct 22 ms 2260 KB Output is correct
15 Correct 26 ms 2292 KB Output is correct
16 Correct 25 ms 2260 KB Output is correct
17 Correct 15 ms 2260 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 21 ms 2308 KB Output is correct
20 Correct 22 ms 2204 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct
10 Correct 22 ms 2260 KB Output is correct
11 Correct 24 ms 2212 KB Output is correct
12 Correct 23 ms 2300 KB Output is correct
13 Correct 20 ms 2204 KB Output is correct
14 Correct 22 ms 2260 KB Output is correct
15 Correct 26 ms 2292 KB Output is correct
16 Correct 25 ms 2260 KB Output is correct
17 Correct 15 ms 2260 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 21 ms 2308 KB Output is correct
20 Correct 22 ms 2204 KB Output is correct
21 Correct 46 ms 2212 KB Output is correct
22 Correct 51 ms 2304 KB Output is correct
23 Correct 42 ms 2208 KB Output is correct
24 Correct 75 ms 2324 KB Output is correct
25 Correct 67 ms 2252 KB Output is correct
26 Correct 71 ms 2336 KB Output is correct
27 Correct 69 ms 2320 KB Output is correct
28 Correct 69 ms 2252 KB Output is correct
29 Correct 72 ms 2448 KB Output is correct
30 Correct 70 ms 2316 KB Output is correct
31 Correct 68 ms 2324 KB Output is correct
32 Correct 69 ms 2260 KB Output is correct
33 Correct 70 ms 2328 KB Output is correct
34 Correct 67 ms 2324 KB Output is correct
35 Correct 66 ms 2328 KB Output is correct
36 Correct 72 ms 2316 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct
10 Correct 22 ms 2260 KB Output is correct
11 Correct 24 ms 2212 KB Output is correct
12 Correct 23 ms 2300 KB Output is correct
13 Correct 20 ms 2204 KB Output is correct
14 Correct 22 ms 2260 KB Output is correct
15 Correct 26 ms 2292 KB Output is correct
16 Correct 25 ms 2260 KB Output is correct
17 Correct 15 ms 2260 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 21 ms 2308 KB Output is correct
20 Correct 22 ms 2204 KB Output is correct
21 Correct 46 ms 2212 KB Output is correct
22 Correct 51 ms 2304 KB Output is correct
23 Correct 42 ms 2208 KB Output is correct
24 Correct 75 ms 2324 KB Output is correct
25 Correct 67 ms 2252 KB Output is correct
26 Correct 71 ms 2336 KB Output is correct
27 Correct 69 ms 2320 KB Output is correct
28 Correct 69 ms 2252 KB Output is correct
29 Correct 72 ms 2448 KB Output is correct
30 Correct 70 ms 2316 KB Output is correct
31 Correct 68 ms 2324 KB Output is correct
32 Correct 69 ms 2260 KB Output is correct
33 Correct 70 ms 2328 KB Output is correct
34 Correct 67 ms 2324 KB Output is correct
35 Correct 66 ms 2328 KB Output is correct
36 Correct 72 ms 2316 KB Output is correct
37 Correct 133 ms 2488 KB Output is correct
38 Correct 134 ms 2444 KB Output is correct
39 Correct 189 ms 2528 KB Output is correct
40 Correct 188 ms 2576 KB Output is correct
41 Correct 183 ms 2568 KB Output is correct
42 Correct 181 ms 2528 KB Output is correct
43 Correct 169 ms 2836 KB Output is correct
44 Correct 172 ms 2896 KB Output is correct
45 Correct 168 ms 2840 KB Output is correct
46 Correct 187 ms 2380 KB Output is correct
47 Correct 183 ms 2572 KB Output is correct
48 Correct 178 ms 2764 KB Output is correct
49 Correct 178 ms 2572 KB Output is correct
50 Correct 178 ms 2552 KB Output is correct
51 Correct 64 ms 1236 KB Output is correct
52 Correct 189 ms 2956 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct
10 Correct 22 ms 2260 KB Output is correct
11 Correct 24 ms 2212 KB Output is correct
12 Correct 23 ms 2300 KB Output is correct
13 Correct 20 ms 2204 KB Output is correct
14 Correct 22 ms 2260 KB Output is correct
15 Correct 26 ms 2292 KB Output is correct
16 Correct 25 ms 2260 KB Output is correct
17 Correct 15 ms 2260 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 21 ms 2308 KB Output is correct
20 Correct 22 ms 2204 KB Output is correct
21 Correct 46 ms 2212 KB Output is correct
22 Correct 51 ms 2304 KB Output is correct
23 Correct 42 ms 2208 KB Output is correct
24 Correct 75 ms 2324 KB Output is correct
25 Correct 67 ms 2252 KB Output is correct
26 Correct 71 ms 2336 KB Output is correct
27 Correct 69 ms 2320 KB Output is correct
28 Correct 69 ms 2252 KB Output is correct
29 Correct 72 ms 2448 KB Output is correct
30 Correct 70 ms 2316 KB Output is correct
31 Correct 68 ms 2324 KB Output is correct
32 Correct 69 ms 2260 KB Output is correct
33 Correct 70 ms 2328 KB Output is correct
34 Correct 67 ms 2324 KB Output is correct
35 Correct 66 ms 2328 KB Output is correct
36 Correct 72 ms 2316 KB Output is correct
37 Correct 133 ms 2488 KB Output is correct
38 Correct 134 ms 2444 KB Output is correct
39 Correct 189 ms 2528 KB Output is correct
40 Correct 188 ms 2576 KB Output is correct
41 Correct 183 ms 2568 KB Output is correct
42 Correct 181 ms 2528 KB Output is correct
43 Correct 169 ms 2836 KB Output is correct
44 Correct 172 ms 2896 KB Output is correct
45 Correct 168 ms 2840 KB Output is correct
46 Correct 187 ms 2380 KB Output is correct
47 Correct 183 ms 2572 KB Output is correct
48 Correct 178 ms 2764 KB Output is correct
49 Correct 178 ms 2572 KB Output is correct
50 Correct 178 ms 2552 KB Output is correct
51 Correct 64 ms 1236 KB Output is correct
52 Correct 189 ms 2956 KB Output is correct
53 Correct 210 ms 2728 KB Output is correct
54 Correct 237 ms 2828 KB Output is correct
55 Correct 244 ms 3220 KB Output is correct
56 Correct 218 ms 2972 KB Output is correct
57 Correct 250 ms 3376 KB Output is correct
58 Correct 245 ms 2968 KB Output is correct
59 Correct 244 ms 2972 KB Output is correct
60 Correct 88 ms 1236 KB Output is correct
61 Correct 251 ms 3124 KB Output is correct
62 Correct 247 ms 3164 KB Output is correct
63 Correct 224 ms 3196 KB Output is correct
64 Correct 223 ms 3208 KB Output is correct
65 Correct 217 ms 2380 KB Output is correct
66 Correct 209 ms 2588 KB Output is correct

Subtask #6
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2260 KB Output is correct
2 Correct 6 ms 2228 KB Output is correct
3 Correct 2 ms 1236 KB Output is correct
4 Correct 5 ms 2260 KB Output is correct
5 Correct 10 ms 2308 KB Output is correct
6 Correct 8 ms 2224 KB Output is correct
7 Correct 8 ms 2260 KB Output is correct
8 Correct 10 ms 2260 KB Output is correct
9 Correct 9 ms 2260 KB Output is correct
10 Correct 22 ms 2260 KB Output is correct
11 Correct 24 ms 2212 KB Output is correct
12 Correct 23 ms 2300 KB Output is correct
13 Correct 20 ms 2204 KB Output is correct
14 Correct 22 ms 2260 KB Output is correct
15 Correct 26 ms 2292 KB Output is correct
16 Correct 25 ms 2260 KB Output is correct
17 Correct 15 ms 2260 KB Output is correct
18 Correct 18 ms 2304 KB Output is correct
19 Correct 21 ms 2308 KB Output is correct
20 Correct 22 ms 2204 KB Output is correct
21 Correct 46 ms 2212 KB Output is correct
22 Correct 51 ms 2304 KB Output is correct
23 Correct 42 ms 2208 KB Output is correct
24 Correct 75 ms 2324 KB Output is correct
25 Correct 67 ms 2252 KB Output is correct
26 Correct 71 ms 2336 KB Output is correct
27 Correct 69 ms 2320 KB Output is correct
28 Correct 69 ms 2252 KB Output is correct
29 Correct 72 ms 2448 KB Output is correct
30 Correct 70 ms 2316 KB Output is correct
31 Correct 68 ms 2324 KB Output is correct
32 Correct 69 ms 2260 KB Output is correct
33 Correct 70 ms 2328 KB Output is correct
34 Correct 67 ms 2324 KB Output is correct
35 Correct 66 ms 2328 KB Output is correct
36 Correct 72 ms 2316 KB Output is correct
37 Correct 133 ms 2488 KB Output is correct
38 Correct 134 ms 2444 KB Output is correct
39 Correct 189 ms 2528 KB Output is correct
40 Correct 188 ms 2576 KB Output is correct
41 Correct 183 ms 2568 KB Output is correct
42 Correct 181 ms 2528 KB Output is correct
43 Correct 169 ms 2836 KB Output is correct
44 Correct 172 ms 2896 KB Output is correct
45 Correct 168 ms 2840 KB Output is correct
46 Correct 187 ms 2380 KB Output is correct
47 Correct 183 ms 2572 KB Output is correct
48 Correct 178 ms 2764 KB Output is correct
49 Correct 178 ms 2572 KB Output is correct
50 Correct 178 ms 2552 KB Output is correct
51 Correct 64 ms 1236 KB Output is correct
52 Correct 189 ms 2956 KB Output is correct
53 Correct 210 ms 2728 KB Output is correct
54 Correct 237 ms 2828 KB Output is correct
55 Correct 244 ms 3220 KB Output is correct
56 Correct 218 ms 2972 KB Output is correct
57 Correct 250 ms 3376 KB Output is correct
58 Correct 245 ms 2968 KB Output is correct
59 Correct 244 ms 2972 KB Output is correct
60 Correct 88 ms 1236 KB Output is correct
61 Correct 251 ms 3124 KB Output is correct
62 Correct 247 ms 3164 KB Output is correct
63 Correct 224 ms 3196 KB Output is correct
64 Correct 223 ms 3208 KB Output is correct
65 Correct 217 ms 2380 KB Output is correct
66 Correct 209 ms 2588 KB Output is correct
67 Correct 282 ms 3016 KB Output is correct
68 Correct 126 ms 1288 KB Output is correct
69 Correct 372 ms 4252 KB Output is correct
70 Correct 358 ms 3492 KB Output is correct
71 Correct 352 ms 3408 KB Output is correct
72 Correct 356 ms 2840 KB Output is correct
73 Correct 344 ms 2708 KB Output is correct
74 Correct 377 ms 4308 KB Output is correct
75 Correct 372 ms 3972 KB Output is correct
76 Correct 384 ms 4484 KB Output is correct
77 Correct 378 ms 4420 KB Output is correct