답안 #22950

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
22950	2017-04-30T16:49:07 Z	gs14004	Unifying Values (KRIII5_UV)	C++11	7 / 7	143 ms	3752 KB

UV

#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;
const int mod = 1e9 + 7;
 
int n;
lint a[10005];
vector<int> v[10005];
vector<lint> dyn[10005];
 
lint dabs(lint x){ return max(x, -x); }
 
lint solve(int x){
	for(int i=0; i<=x; i++){
		v[i].clear();
		dyn[i].clear();
	}
	lint q = a[n] / x;
	for(int i=0; i<=n; i++){
		if(dabs(a[i]) % dabs(q) == 0){
			if(a[i] / q <= x && a[i]/q  >= 0) v[a[i] / q].push_back(i);
		}
	}
	for(int i=0; i<=x; i++){
		if(v[i].size() == 0) return 0;
		dyn[i].resize(v[i].size());
	}
	dyn[0][0] = 1;
	for(int i=1; i<=x; i++){
		int pt = 0;
		lint sum = 0;
		for(int j=0; j<v[i].size(); j++){
			while(pt < v[i-1].size() && v[i-1][pt] < v[i][j]){
				sum += dyn[i-1][pt];
				pt++;
			}
			sum %= mod;
			dyn[i][j] = sum;
		}
	}
	return dyn[x].back();
}
 
int main(){
	cin >> n;
	for(int i=1; i<=n; i++){
		lint x;
		cin >> x;
		a[i] = a[i-1] + x;
	}
	if(a[n] == 0){
		lint ans = 1;
		for(int i=1; i<n; i++){
			if(a[i] == 0) ans = ans * 2 % mod;
		}
		cout << (ans + mod - 1) % mod;
		return 0;
	}
	lint ret = 0;
	for(int i=2; i<=n; i++){
		if(dabs(a[n]) % i == 0){
			ret += solve(i);
		}
	}
	cout << ret % mod;
}

Compilation message

UV.cpp: In function 'lint solve(int)':
UV.cpp:34:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<v[i].size(); j++){
                 ^
UV.cpp:35:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    while(pt < v[i-1].size() && v[i-1][pt] < v[i][j]){
             ^

Subtask #1

2.0 / 2.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2564 KB	Output is correct
2	Correct	0 ms	2564 KB	Output is correct
3	Correct	0 ms	2564 KB	Output is correct
4	Correct	3 ms	3224 KB	Output is correct
5	Correct	6 ms	3224 KB	Output is correct
6	Correct	3 ms	2564 KB	Output is correct
7	Correct	3 ms	2828 KB	Output is correct
8	Correct	3 ms	2828 KB	Output is correct
9	Correct	3 ms	2828 KB	Output is correct
10	Correct	3 ms	2696 KB	Output is correct
11	Correct	3 ms	2696 KB	Output is correct
12	Correct	3 ms	2696 KB	Output is correct
13	Correct	6 ms	2828 KB	Output is correct
14	Correct	3 ms	2828 KB	Output is correct
15	Correct	3 ms	2828 KB	Output is correct
16	Correct	3 ms	2828 KB	Output is correct
17	Correct	0 ms	2696 KB	Output is correct
18	Correct	3 ms	2564 KB	Output is correct
19	Correct	3 ms	2564 KB	Output is correct
20	Correct	3 ms	2564 KB	Output is correct
21	Correct	3 ms	2564 KB	Output is correct
22	Correct	3 ms	2564 KB	Output is correct
23	Correct	3 ms	2564 KB	Output is correct
24	Correct	3 ms	2564 KB	Output is correct
25	Correct	0 ms	2564 KB	Output is correct
26	Correct	0 ms	2564 KB	Output is correct
27	Correct	3 ms	2564 KB	Output is correct
28	Correct	3 ms	2696 KB	Output is correct
29	Correct	6 ms	2696 KB	Output is correct
30	Correct	3 ms	2696 KB	Output is correct
31	Correct	3 ms	2828 KB	Output is correct
32	Correct	3 ms	2828 KB	Output is correct
33	Correct	3 ms	2696 KB	Output is correct
34	Correct	3 ms	2696 KB	Output is correct
35	Correct	6 ms	2828 KB	Output is correct
36	Correct	6 ms	2828 KB	Output is correct
37	Correct	6 ms	2828 KB	Output is correct
38	Correct	6 ms	2828 KB	Output is correct
39	Correct	6 ms	2828 KB	Output is correct
40	Correct	6 ms	2828 KB	Output is correct
41	Correct	6 ms	2828 KB	Output is correct
42	Correct	3 ms	2828 KB	Output is correct
43	Correct	6 ms	2828 KB	Output is correct
44	Correct	6 ms	2828 KB	Output is correct
45	Correct	6 ms	2828 KB	Output is correct
46	Correct	6 ms	2828 KB	Output is correct
47	Correct	3 ms	2828 KB	Output is correct
48	Correct	6 ms	2828 KB	Output is correct
49	Correct	3 ms	2828 KB	Output is correct
50	Correct	6 ms	2828 KB	Output is correct

Subtask #2

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	2828 KB	Output is correct
2	Correct	0 ms	2828 KB	Output is correct
3	Correct	3 ms	2828 KB	Output is correct
4	Correct	3 ms	2564 KB	Output is correct
5	Correct	6 ms	2828 KB	Output is correct
6	Correct	3 ms	2564 KB	Output is correct
7	Correct	13 ms	2960 KB	Output is correct
8	Correct	3 ms	2960 KB	Output is correct
9	Correct	3 ms	2564 KB	Output is correct
10	Correct	3 ms	2696 KB	Output is correct
11	Correct	3 ms	2564 KB	Output is correct
12	Correct	3 ms	2564 KB	Output is correct
13	Correct	3 ms	2564 KB	Output is correct
14	Correct	6 ms	2564 KB	Output is correct
15	Correct	6 ms	2564 KB	Output is correct
16	Correct	6 ms	2564 KB	Output is correct
17	Correct	16 ms	3224 KB	Output is correct
18	Correct	13 ms	3224 KB	Output is correct
19	Correct	0 ms	2564 KB	Output is correct
20	Correct	6 ms	2564 KB	Output is correct
21	Correct	6 ms	2564 KB	Output is correct
22	Correct	6 ms	2564 KB	Output is correct
23	Correct	0 ms	2564 KB	Output is correct
24	Correct	3 ms	2564 KB	Output is correct
25	Correct	0 ms	2564 KB	Output is correct
26	Correct	0 ms	2564 KB	Output is correct
27	Correct	6 ms	2696 KB	Output is correct
28	Correct	9 ms	2696 KB	Output is correct
29	Correct	6 ms	2696 KB	Output is correct
30	Correct	23 ms	2828 KB	Output is correct
31	Correct	9 ms	2828 KB	Output is correct
32	Correct	9 ms	2696 KB	Output is correct
33	Correct	6 ms	2696 KB	Output is correct
34	Correct	13 ms	2828 KB	Output is correct
35	Correct	23 ms	2828 KB	Output is correct
36	Correct	9 ms	2696 KB	Output is correct
37	Correct	16 ms	2696 KB	Output is correct
38	Correct	16 ms	2696 KB	Output is correct
39	Correct	13 ms	2696 KB	Output is correct
40	Correct	39 ms	2696 KB	Output is correct
41	Correct	46 ms	2828 KB	Output is correct
42	Correct	16 ms	2696 KB	Output is correct
43	Correct	46 ms	2828 KB	Output is correct
44	Correct	49 ms	2828 KB	Output is correct
45	Correct	23 ms	2696 KB	Output is correct
46	Correct	29 ms	2696 KB	Output is correct
47	Correct	33 ms	2696 KB	Output is correct
48	Correct	53 ms	2696 KB	Output is correct
49	Correct	69 ms	2696 KB	Output is correct
50	Correct	43 ms	2696 KB	Output is correct
51	Correct	39 ms	2696 KB	Output is correct
52	Correct	59 ms	2564 KB	Output is correct
53	Correct	33 ms	2564 KB	Output is correct
54	Correct	49 ms	2564 KB	Output is correct
55	Correct	59 ms	2564 KB	Output is correct
56	Correct	56 ms	2696 KB	Output is correct
57	Correct	39 ms	2564 KB	Output is correct
58	Correct	46 ms	2564 KB	Output is correct
59	Correct	56 ms	2564 KB	Output is correct
60	Correct	56 ms	2696 KB	Output is correct
61	Correct	143 ms	2696 KB	Output is correct
62	Correct	59 ms	2696 KB	Output is correct
63	Correct	49 ms	2564 KB	Output is correct
64	Correct	0 ms	2704 KB	Output is correct
65	Correct	6 ms	2704 KB	Output is correct
66	Correct	26 ms	3372 KB	Output is correct
67	Correct	9 ms	2832 KB	Output is correct
68	Correct	19 ms	3376 KB	Output is correct
69	Correct	6 ms	2832 KB	Output is correct
70	Correct	9 ms	2696 KB	Output is correct
71	Correct	13 ms	2828 KB	Output is correct
72	Correct	26 ms	3092 KB	Output is correct
73	Correct	16 ms	2960 KB	Output is correct
74	Correct	6 ms	2828 KB	Output is correct
75	Correct	19 ms	2960 KB	Output is correct
76	Correct	6 ms	2828 KB	Output is correct
77	Correct	66 ms	3752 KB	Output is correct
78	Correct	79 ms	3356 KB	Output is correct
79	Correct	9 ms	2696 KB	Output is correct
80	Correct	26 ms	2828 KB	Output is correct
81	Correct	16 ms	2960 KB	Output is correct
82	Correct	9 ms	2828 KB	Output is correct
83	Correct	16 ms	2960 KB	Output is correct
84	Correct	89 ms	3620 KB	Output is correct
85	Correct	66 ms	3356 KB	Output is correct
86	Correct	6 ms	2828 KB	Output is correct
87	Correct	3 ms	2696 KB	Output is correct
88	Correct	13 ms	2828 KB	Output is correct
89	Correct	9 ms	2828 KB	Output is correct
90	Correct	3 ms	2828 KB	Output is correct
91	Correct	0 ms	2564 KB	Output is correct
92	Correct	0 ms	2564 KB	Output is correct
93	Correct	0 ms	2564 KB	Output is correct
94	Correct	3 ms	3224 KB	Output is correct
95	Correct	6 ms	3224 KB	Output is correct
96	Correct	3 ms	2564 KB	Output is correct
97	Correct	3 ms	2828 KB	Output is correct
98	Correct	3 ms	2828 KB	Output is correct
99	Correct	3 ms	2828 KB	Output is correct
100	Correct	3 ms	2696 KB	Output is correct
101	Correct	3 ms	2696 KB	Output is correct
102	Correct	3 ms	2696 KB	Output is correct
103	Correct	6 ms	2828 KB	Output is correct
104	Correct	3 ms	2828 KB	Output is correct
105	Correct	3 ms	2828 KB	Output is correct
106	Correct	3 ms	2828 KB	Output is correct
107	Correct	0 ms	2696 KB	Output is correct
108	Correct	3 ms	2564 KB	Output is correct
109	Correct	3 ms	2564 KB	Output is correct
110	Correct	3 ms	2564 KB	Output is correct
111	Correct	3 ms	2564 KB	Output is correct
112	Correct	3 ms	2564 KB	Output is correct
113	Correct	3 ms	2564 KB	Output is correct
114	Correct	3 ms	2564 KB	Output is correct
115	Correct	0 ms	2564 KB	Output is correct
116	Correct	0 ms	2564 KB	Output is correct
117	Correct	3 ms	2564 KB	Output is correct
118	Correct	3 ms	2696 KB	Output is correct
119	Correct	6 ms	2696 KB	Output is correct
120	Correct	3 ms	2696 KB	Output is correct
121	Correct	3 ms	2828 KB	Output is correct
122	Correct	3 ms	2828 KB	Output is correct
123	Correct	3 ms	2696 KB	Output is correct
124	Correct	3 ms	2696 KB	Output is correct
125	Correct	6 ms	2828 KB	Output is correct
126	Correct	6 ms	2828 KB	Output is correct
127	Correct	6 ms	2828 KB	Output is correct
128	Correct	6 ms	2828 KB	Output is correct
129	Correct	6 ms	2828 KB	Output is correct
130	Correct	6 ms	2828 KB	Output is correct
131	Correct	6 ms	2828 KB	Output is correct
132	Correct	3 ms	2828 KB	Output is correct
133	Correct	6 ms	2828 KB	Output is correct
134	Correct	6 ms	2828 KB	Output is correct
135	Correct	6 ms	2828 KB	Output is correct
136	Correct	6 ms	2828 KB	Output is correct
137	Correct	3 ms	2828 KB	Output is correct
138	Correct	6 ms	2828 KB	Output is correct
139	Correct	3 ms	2828 KB	Output is correct
140	Correct	6 ms	2828 KB	Output is correct