답안 #20682 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20682	2017-02-13T13:39:51 Z	우리OJ(#80, cki86201)	복불복 (OJUZ11_luck)	C++14	47 / 100	193 ms	2028 KB

luck

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <bitset>

using namespace std;
typedef pair<int, int> Pi;
typedef long long ll;
#define pii Pi
#define pll PL
#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) ((int)(x).size())
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) (x).begin(), (x).end()
typedef tuple<int, int, int> t3;
typedef pair<ll, ll> PL;

int n, k;
int A[110], B[110];

const int MOD = 1e9 + 7;

void subtask_1(){
	int p[8] = {}, ans = 0;
	rep(i, n)p[i] = i;
	do{
		int aa = 1e9, bb = 0;
		rep(i, n){
			if(i < k)aa = min(aa, A[i] + B[p[i]]);
			else bb = max(bb, A[i] + B[p[i]]);
		}
		if(aa >= bb)ans++;
	}while(next_permutation(p, p+n));
	printf("%d\n", ans);
}

void subtask_2(){
	ll ans = 0;
	for(int i=0;i<n;i++){
		int aa = A[0] + B[i];
		int v[110] = {};
		for(int j=1;j<n;j++){
			int c = 0;
			for(int k=0;k<n;k++)if(i != k && B[k] + A[j] <= aa)++c;
			for(int k=1;k<=c;k++)v[k]++;
		}
		ll now = 1;
		for(int j=n-1;j;j--){
			now = now * v[j] % MOD;
			for(int k=j;k;k--)v[k]--;
		}
		ans = (ans + now) % MOD;
	}
	printf("%lld\n", ans);
}

void subtask_3_get(int k, int *A, vector <int> &v, vector <Pi> &res, int inv){
	rep(a, k){
		rep(b, k){
			int t = A[a] + v[b];
			vector <int> cv(k+1, 0);
			rep(c, k){
				int cnt = 0;
				rep(d, k)if(inv * (A[c] + v[d]) >= inv * t)cnt++;
				cv[cnt]++;
			}
			ll g = 1;
			for(int c=k, r=0;c;c--){
				g = (cv[c] + r) * g % MOD;
				r += cv[c] - 1;
			}
			res.pb(Pi(t, (int)g));
		}
	}
	sort(all(res));
}

void subtask_3(){
	if(k == n){
		ll ans = 1;
		rep(i, n)ans = ans * (i+1) % MOD;
		printf("%lld\n", ans);
		return;
	}
	ll ans = 0;
	for(int i=0;i<1<<n;i++){
		if(__builtin_popcount(i) != k)continue;
		vector <int> v, w;
		rep(j, n){
			if(1<<j & i)v.pb(B[j]);
			else w.pb(B[j]);
		}
		vector <Pi> av, aw;
		subtask_3_get(k, A, v, av, 1);		//min
		subtask_3_get(n-k, A+k, w, aw, -1);	//max
		for(int j=sz(aw)-1;j;j--)aw[j].Se = (aw[j].Se - aw[j-1].Se + MOD) % MOD;
		for(int j=0;j<sz(aw);j++){
			int ww = aw[j].Fi;
			auto it = lower_bound(all(av), Pi(ww, -1));
			if(it != av.end())ans = (ans + (ll)aw[j].Se * (lower_bound(all(av), Pi(ww, -1))->Se)) % MOD;
		}
	}
	printf("%lld\n", ans);
}

void solve(){
	scanf("%d%d", &n, &k);
	rep(i, n)scanf("%d", A+i);
	rep(i, n)scanf("%d", B+i);
	sort(A, A+n); reverse(A, A+n);
	sort(B, B+n); reverse(B, B+n);
	int debug = 0;
	if(n <= 8){
		subtask_1();
		if(!debug)return;
	}
	if(k == 1){
		subtask_2();
		if(!debug)return;
	}
	if(n <= 15){
		subtask_3();
	}
}

int main(){
	int Tc = 1; //scanf("%d", &Tc);
	for(int tc=1;tc<=Tc;tc++){
		//printf("Case #%d: ", tc);
		solve();
	}
	return 0;
}

Compilation message

luck.cpp: In function 'void solve()':
luck.cpp:122:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &k);
                       ^
luck.cpp:123:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i, n)scanf("%d", A+i);
                           ^
luck.cpp:124:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i, n)scanf("%d", B+i);
                           ^

Subtask #1
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	2028 KB	Output is correct
2	Correct	2028 KB	Output is correct
3	Correct	2028 KB	Output is correct
4	Correct	2028 KB	Output is correct
5	Correct	2028 KB	Output is correct
6	Correct	2028 KB	Output is correct
7	Correct	2028 KB	Output is correct
8	Correct	2028 KB	Output is correct
9	Correct	2028 KB	Output is correct
10	Correct	2028 KB	Output is correct
11	Correct	2028 KB	Output is correct
12	Correct	2028 KB	Output is correct
13	Correct	2028 KB	Output is correct
14	Correct	2028 KB	Output is correct
15	Correct	2028 KB	Output is correct
16	Correct	2028 KB	Output is correct
17	Correct	2028 KB	Output is correct
18	Correct	2028 KB	Output is correct
19	Correct	2028 KB	Output is correct
20	Correct	2028 KB	Output is correct
21	Correct	2028 KB	Output is correct
22	Correct	2028 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	0 ms	2028 KB	Output is correct
4	Correct	3 ms	2028 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	0 ms	2028 KB	Output is correct
4	Correct	0 ms	2028 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	0 ms	2028 KB	Output is correct
19	Correct	0 ms	2028 KB	Output is correct
20	Correct	0 ms	2028 KB	Output is correct
21	Correct	0 ms	2028 KB	Output is correct
22	Correct	0 ms	2028 KB	Output is correct
23	Correct	13 ms	2028 KB	Output is correct
24	Correct	153 ms	2028 KB	Output is correct
25	Correct	193 ms	2028 KB	Output is correct
26	Correct	159 ms	2028 KB	Output is correct
27	Correct	169 ms	2028 KB	Output is correct
28	Correct	93 ms	2028 KB	Output is correct
29	Correct	143 ms	2028 KB	Output is correct
30	Correct	0 ms	2028 KB	Output is correct
31	Correct	6 ms	2028 KB	Output is correct
32	Correct	103 ms	2028 KB	Output is correct
33	Correct	0 ms	2028 KB	Output is correct
34	Correct	0 ms	2028 KB	Output is correct
35	Correct	0 ms	2028 KB	Output is correct
36	Correct	16 ms	2028 KB	Output is correct
37	Correct	69 ms	2028 KB	Output is correct
38	Correct	53 ms	2028 KB	Output is correct
39	Correct	0 ms	2028 KB	Output is correct
40	Correct	0 ms	2028 KB	Output is correct
41	Correct	6 ms	2028 KB	Output is correct
42	Correct	0 ms	2028 KB	Output is correct
43	Correct	0 ms	2028 KB	Output is correct
44	Correct	6 ms	2028 KB	Output is correct
45	Correct	0 ms	2028 KB	Output is correct

Subtask #4
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	0 ms	2028 KB	Output is correct
4	Correct	0 ms	2028 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	0 ms	2028 KB	Output is correct
19	Correct	0 ms	2028 KB	Output is correct
20	Correct	0 ms	2028 KB	Output is correct
21	Correct	0 ms	2028 KB	Output is correct
22	Correct	0 ms	2028 KB	Output is correct
23	Correct	0 ms	2028 KB	Output is correct
24	Correct	0 ms	2028 KB	Output is correct
25	Correct	0 ms	2028 KB	Output is correct
26	Correct	3 ms	2028 KB	Output is correct
27	Correct	0 ms	2028 KB	Output is correct
28	Correct	0 ms	2028 KB	Output is correct
29	Correct	0 ms	2028 KB	Output is correct
30	Correct	0 ms	2028 KB	Output is correct
31	Correct	0 ms	2028 KB	Output is correct
32	Correct	0 ms	2028 KB	Output is correct
33	Correct	0 ms	2028 KB	Output is correct
34	Correct	0 ms	2028 KB	Output is correct
35	Correct	0 ms	2028 KB	Output is correct
36	Correct	0 ms	2028 KB	Output is correct
37	Correct	0 ms	2028 KB	Output is correct
38	Correct	0 ms	2028 KB	Output is correct
39	Correct	0 ms	2028 KB	Output is correct
40	Incorrect	0 ms	2028 KB	Output isn't correct
41	Incorrect	0 ms	2028 KB	Output isn't correct
42	Incorrect	0 ms	2028 KB	Output isn't correct
43	Incorrect	0 ms	2028 KB	Output isn't correct
44	Incorrect	0 ms	2028 KB	Output isn't correct
45	Incorrect	0 ms	2028 KB	Output isn't correct
46	Incorrect	0 ms	2028 KB	Output isn't correct
47	Incorrect	0 ms	2028 KB	Output isn't correct
48	Incorrect	0 ms	2028 KB	Output isn't correct
49	Incorrect	0 ms	2028 KB	Output isn't correct
50	Incorrect	0 ms	2028 KB	Output isn't correct
51	Incorrect	0 ms	2028 KB	Output isn't correct
52	Incorrect	0 ms	2028 KB	Output isn't correct
53	Incorrect	0 ms	2028 KB	Output isn't correct
54	Incorrect	0 ms	2028 KB	Output isn't correct
55	Incorrect	0 ms	2028 KB	Output isn't correct
56	Incorrect	0 ms	2028 KB	Output isn't correct
57	Incorrect	0 ms	2028 KB	Output isn't correct
58	Incorrect	0 ms	2028 KB	Output isn't correct
59	Incorrect	0 ms	2028 KB	Output isn't correct

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	0 ms	2028 KB	Output is correct
4	Correct	0 ms	2028 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	0 ms	2028 KB	Output is correct
19	Correct	0 ms	2028 KB	Output is correct
20	Correct	0 ms	2028 KB	Output is correct
21	Correct	0 ms	2028 KB	Output is correct
22	Correct	0 ms	2028 KB	Output is correct
23	Correct	0 ms	2028 KB	Output is correct
24	Correct	0 ms	2028 KB	Output is correct
25	Correct	0 ms	2028 KB	Output is correct
26	Correct	3 ms	2028 KB	Output is correct
27	Correct	0 ms	2028 KB	Output is correct
28	Correct	0 ms	2028 KB	Output is correct
29	Correct	0 ms	2028 KB	Output is correct
30	Correct	0 ms	2028 KB	Output is correct
31	Correct	0 ms	2028 KB	Output is correct
32	Correct	0 ms	2028 KB	Output is correct
33	Correct	0 ms	2028 KB	Output is correct
34	Correct	0 ms	2028 KB	Output is correct
35	Correct	0 ms	2028 KB	Output is correct
36	Correct	0 ms	2028 KB	Output is correct
37	Correct	0 ms	2028 KB	Output is correct
38	Correct	0 ms	2028 KB	Output is correct
39	Correct	0 ms	2028 KB	Output is correct
40	Correct	13 ms	2028 KB	Output is correct
41	Correct	153 ms	2028 KB	Output is correct
42	Correct	193 ms	2028 KB	Output is correct
43	Correct	159 ms	2028 KB	Output is correct
44	Correct	169 ms	2028 KB	Output is correct
45	Correct	93 ms	2028 KB	Output is correct
46	Correct	143 ms	2028 KB	Output is correct
47	Correct	0 ms	2028 KB	Output is correct
48	Correct	6 ms	2028 KB	Output is correct
49	Correct	103 ms	2028 KB	Output is correct
50	Correct	0 ms	2028 KB	Output is correct
51	Correct	0 ms	2028 KB	Output is correct
52	Correct	0 ms	2028 KB	Output is correct
53	Correct	16 ms	2028 KB	Output is correct
54	Correct	69 ms	2028 KB	Output is correct
55	Correct	53 ms	2028 KB	Output is correct
56	Correct	0 ms	2028 KB	Output is correct
57	Correct	0 ms	2028 KB	Output is correct
58	Correct	6 ms	2028 KB	Output is correct
59	Correct	0 ms	2028 KB	Output is correct
60	Correct	0 ms	2028 KB	Output is correct
61	Correct	6 ms	2028 KB	Output is correct
62	Correct	0 ms	2028 KB	Output is correct
63	Incorrect	0 ms	2028 KB	Output isn't correct
64	Incorrect	0 ms	2028 KB	Output isn't correct
65	Incorrect	0 ms	2028 KB	Output isn't correct
66	Incorrect	0 ms	2028 KB	Output isn't correct
67	Incorrect	0 ms	2028 KB	Output isn't correct
68	Incorrect	0 ms	2028 KB	Output isn't correct
69	Incorrect	0 ms	2028 KB	Output isn't correct
70	Incorrect	0 ms	2028 KB	Output isn't correct
71	Incorrect	0 ms	2028 KB	Output isn't correct
72	Incorrect	0 ms	2028 KB	Output isn't correct
73	Incorrect	0 ms	2028 KB	Output isn't correct
74	Incorrect	0 ms	2028 KB	Output isn't correct
75	Incorrect	0 ms	2028 KB	Output isn't correct
76	Incorrect	0 ms	2028 KB	Output isn't correct
77	Incorrect	0 ms	2028 KB	Output isn't correct
78	Incorrect	0 ms	2028 KB	Output isn't correct
79	Incorrect	0 ms	2028 KB	Output isn't correct
80	Incorrect	0 ms	2028 KB	Output isn't correct
81	Incorrect	0 ms	2028 KB	Output isn't correct
82	Incorrect	0 ms	2028 KB	Output isn't correct
83	Incorrect	0 ms	2028 KB	Output isn't correct
84	Incorrect	0 ms	2028 KB	Output isn't correct
85	Incorrect	0 ms	2028 KB	Output isn't correct
86	Incorrect	0 ms	2028 KB	Output isn't correct
87	Incorrect	0 ms	2028 KB	Output isn't correct
88	Incorrect	0 ms	2028 KB	Output isn't correct
89	Incorrect	0 ms	2028 KB	Output isn't correct
90	Incorrect	0 ms	2028 KB	Output isn't correct
91	Incorrect	0 ms	2028 KB	Output isn't correct
92	Incorrect	0 ms	2028 KB	Output isn't correct
93	Incorrect	0 ms	2028 KB	Output isn't correct
94	Incorrect	0 ms	2028 KB	Output isn't correct
95	Incorrect	0 ms	2028 KB	Output isn't correct
96	Incorrect	0 ms	2028 KB	Output isn't correct
97	Incorrect	0 ms	2028 KB	Output isn't correct
98	Incorrect	0 ms	2028 KB	Output isn't correct
99	Incorrect	0 ms	2028 KB	Output isn't correct
100	Incorrect	0 ms	2028 KB	Output isn't correct
101	Incorrect	0 ms	2028 KB	Output isn't correct
102	Incorrect	0 ms	2028 KB	Output isn't correct
103	Incorrect	0 ms	2028 KB	Output isn't correct
104	Incorrect	0 ms	2028 KB	Output isn't correct
105	Incorrect	0 ms	2028 KB	Output isn't correct
106	Incorrect	0 ms	2028 KB	Output isn't correct
107	Incorrect	0 ms	2028 KB	Output isn't correct

답안 #20682

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 13.0 / 13.0

Subtask #3 25.0 / 25.0

Subtask #4 0 / 26.0

Subtask #5 0 / 27.0

Subtask #1
9.0 / 9.0

Subtask #2
13.0 / 13.0

Subtask #3
25.0 / 25.0

Subtask #4
0 / 26.0

Subtask #5
0 / 27.0