oj.uz

Submission #22950

# Submission time Handle Problem Language Result Execution time Memory
22950 2017-04-30T16:49:07 Z gs14004 Unifying Values (KRIII5_UV) C++11
7 / 7
 143 ms 3752 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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