#include <stdio.h>
#include <algorithm>
#include <vector>
#include <functional>
#include <set>
#include <map>
#include <queue>
#include <tuple>
#include <string.h>
using namespace std;
#define rep(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
typedef long long ll;
typedef pair<int, int> pi;
const int MOD = 1e9 + 7, MAX_N = 1e4 + 10;
int N; ll Nr[MAX_N], Sum[MAX_N];
int Cnt[MAX_N];
vector<ll> list;
int getIx(ll v) {return lower_bound(list.begin(), list.end(), v) - list.begin();}
bool welldiv(ll a, ll b) {
if(b == 0) return a == 0;
return abs(a) % abs(b) == 0;
}
int main() {
scanf("%d", &N);
for(int i=1; i<=N; i++) scanf("%lld", &Nr[i]), list.push_back(Sum[i] = Sum[i-1] + Nr[i]);
list.push_back(0), sort(list.begin(), list.end()); list.erase(unique(list.begin(), list.end()), list.end());
ll all = Sum[N], ans = 0;
for(ll val : list) {
if(welldiv(all, val) == false) continue;
if(all == 0 && val != 0) continue;
for(int i=0; i<=N; i++) Cnt[i] = 0;
Cnt[getIx(0)] = 1;
ll nowAns = 0;
for(int i=1; i<=N; i++) {
if(welldiv(Sum[i], val) == false) continue;
ll pre = Sum[i] - val;
int ix = getIx(Sum[i]), pix = getIx(pre);
if(list[pix] != pre) continue;
if(i == N) nowAns += Cnt[pix], nowAns %= MOD;
Cnt[ix] += Cnt[pix]; Cnt[ix] %= MOD;
// printf("%lld : %d\n", Sum[i], Cnt[ix]);
}
// printf("%lld : %d\n", val, nowAns);
ans += nowAns; ans %= MOD;
}
ans += (MOD - 1); ans %= MOD;
printf("%lld\n", ans);
return 0;
}
Compilation message
UV.cpp: In function 'int main()':
UV.cpp:28:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &N);
^
UV.cpp:29:90: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(int i=1; i<=N; i++) scanf("%lld", &Nr[i]), list.push_back(Sum[i] = Sum[i-1] + Nr[i]);
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1372 KB |
Output is correct |
2 |
Correct |
0 ms |
1372 KB |
Output is correct |
3 |
Correct |
0 ms |
1372 KB |
Output is correct |
4 |
Correct |
6 ms |
1644 KB |
Output is correct |
5 |
Correct |
6 ms |
1644 KB |
Output is correct |
6 |
Correct |
0 ms |
1644 KB |
Output is correct |
7 |
Correct |
3 ms |
1644 KB |
Output is correct |
8 |
Correct |
3 ms |
1644 KB |
Output is correct |
9 |
Correct |
3 ms |
1644 KB |
Output is correct |
10 |
Correct |
3 ms |
1644 KB |
Output is correct |
11 |
Correct |
3 ms |
1644 KB |
Output is correct |
12 |
Correct |
3 ms |
1644 KB |
Output is correct |
13 |
Correct |
3 ms |
1644 KB |
Output is correct |
14 |
Correct |
3 ms |
1644 KB |
Output is correct |
15 |
Correct |
3 ms |
1644 KB |
Output is correct |
16 |
Correct |
6 ms |
1644 KB |
Output is correct |
17 |
Correct |
3 ms |
1644 KB |
Output is correct |
18 |
Correct |
3 ms |
1644 KB |
Output is correct |
19 |
Correct |
0 ms |
1644 KB |
Output is correct |
20 |
Correct |
0 ms |
1644 KB |
Output is correct |
21 |
Correct |
3 ms |
1644 KB |
Output is correct |
22 |
Correct |
0 ms |
1644 KB |
Output is correct |
23 |
Correct |
0 ms |
1644 KB |
Output is correct |
24 |
Correct |
0 ms |
1644 KB |
Output is correct |
25 |
Correct |
0 ms |
1644 KB |
Output is correct |
26 |
Correct |
0 ms |
1644 KB |
Output is correct |
27 |
Correct |
3 ms |
1644 KB |
Output is correct |
28 |
Correct |
3 ms |
1644 KB |
Output is correct |
29 |
Correct |
6 ms |
1644 KB |
Output is correct |
30 |
Correct |
6 ms |
1644 KB |
Output is correct |
31 |
Correct |
3 ms |
1644 KB |
Output is correct |
32 |
Correct |
3 ms |
1644 KB |
Output is correct |
33 |
Correct |
6 ms |
1644 KB |
Output is correct |
34 |
Correct |
3 ms |
1644 KB |
Output is correct |
35 |
Correct |
6 ms |
1644 KB |
Output is correct |
36 |
Correct |
6 ms |
1644 KB |
Output is correct |
37 |
Correct |
6 ms |
1644 KB |
Output is correct |
38 |
Correct |
13 ms |
1644 KB |
Output is correct |
39 |
Correct |
6 ms |
1644 KB |
Output is correct |
40 |
Correct |
3 ms |
1644 KB |
Output is correct |
41 |
Correct |
9 ms |
1644 KB |
Output is correct |
42 |
Correct |
3 ms |
1644 KB |
Output is correct |
43 |
Correct |
9 ms |
1644 KB |
Output is correct |
44 |
Correct |
6 ms |
1644 KB |
Output is correct |
45 |
Correct |
6 ms |
1644 KB |
Output is correct |
46 |
Correct |
6 ms |
1644 KB |
Output is correct |
47 |
Correct |
3 ms |
1644 KB |
Output is correct |
48 |
Correct |
3 ms |
1644 KB |
Output is correct |
49 |
Correct |
3 ms |
1644 KB |
Output is correct |
50 |
Correct |
3 ms |
1644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
1644 KB |
Output is correct |
2 |
Correct |
3 ms |
1644 KB |
Output is correct |
3 |
Correct |
3 ms |
1644 KB |
Output is correct |
4 |
Correct |
3 ms |
1644 KB |
Output is correct |
5 |
Correct |
3 ms |
1644 KB |
Output is correct |
6 |
Correct |
6 ms |
1644 KB |
Output is correct |
7 |
Correct |
6 ms |
1644 KB |
Output is correct |
8 |
Correct |
6 ms |
1644 KB |
Output is correct |
9 |
Correct |
9 ms |
1644 KB |
Output is correct |
10 |
Correct |
0 ms |
1644 KB |
Output is correct |
11 |
Correct |
3 ms |
1644 KB |
Output is correct |
12 |
Correct |
0 ms |
1644 KB |
Output is correct |
13 |
Correct |
0 ms |
1644 KB |
Output is correct |
14 |
Correct |
3 ms |
1644 KB |
Output is correct |
15 |
Correct |
3 ms |
1644 KB |
Output is correct |
16 |
Correct |
0 ms |
1644 KB |
Output is correct |
17 |
Correct |
6 ms |
1644 KB |
Output is correct |
18 |
Correct |
6 ms |
1644 KB |
Output is correct |
19 |
Correct |
0 ms |
1644 KB |
Output is correct |
20 |
Correct |
3 ms |
1644 KB |
Output is correct |
21 |
Correct |
3 ms |
1644 KB |
Output is correct |
22 |
Correct |
3 ms |
1644 KB |
Output is correct |
23 |
Correct |
3 ms |
1644 KB |
Output is correct |
24 |
Correct |
0 ms |
1644 KB |
Output is correct |
25 |
Correct |
0 ms |
1644 KB |
Output is correct |
26 |
Correct |
0 ms |
1644 KB |
Output is correct |
27 |
Correct |
3 ms |
1644 KB |
Output is correct |
28 |
Correct |
3 ms |
1644 KB |
Output is correct |
29 |
Correct |
3 ms |
1644 KB |
Output is correct |
30 |
Correct |
3 ms |
1644 KB |
Output is correct |
31 |
Correct |
3 ms |
1644 KB |
Output is correct |
32 |
Correct |
3 ms |
1644 KB |
Output is correct |
33 |
Correct |
0 ms |
1644 KB |
Output is correct |
34 |
Correct |
3 ms |
1644 KB |
Output is correct |
35 |
Correct |
0 ms |
1644 KB |
Output is correct |
36 |
Correct |
3 ms |
1644 KB |
Output is correct |
37 |
Correct |
6 ms |
1644 KB |
Output is correct |
38 |
Correct |
6 ms |
1644 KB |
Output is correct |
39 |
Correct |
6 ms |
1644 KB |
Output is correct |
40 |
Correct |
9 ms |
1644 KB |
Output is correct |
41 |
Correct |
9 ms |
1644 KB |
Output is correct |
42 |
Correct |
6 ms |
1644 KB |
Output is correct |
43 |
Correct |
6 ms |
1644 KB |
Output is correct |
44 |
Correct |
9 ms |
1644 KB |
Output is correct |
45 |
Correct |
6 ms |
1644 KB |
Output is correct |
46 |
Correct |
3 ms |
1644 KB |
Output is correct |
47 |
Correct |
6 ms |
1644 KB |
Output is correct |
48 |
Correct |
6 ms |
1644 KB |
Output is correct |
49 |
Correct |
6 ms |
1644 KB |
Output is correct |
50 |
Correct |
6 ms |
1644 KB |
Output is correct |
51 |
Correct |
6 ms |
1644 KB |
Output is correct |
52 |
Correct |
3 ms |
1644 KB |
Output is correct |
53 |
Correct |
6 ms |
1644 KB |
Output is correct |
54 |
Correct |
6 ms |
1644 KB |
Output is correct |
55 |
Correct |
3 ms |
1644 KB |
Output is correct |
56 |
Correct |
3 ms |
1644 KB |
Output is correct |
57 |
Correct |
3 ms |
1644 KB |
Output is correct |
58 |
Correct |
3 ms |
1644 KB |
Output is correct |
59 |
Correct |
6 ms |
1644 KB |
Output is correct |
60 |
Correct |
6 ms |
1644 KB |
Output is correct |
61 |
Correct |
6 ms |
1644 KB |
Output is correct |
62 |
Correct |
6 ms |
1644 KB |
Output is correct |
63 |
Correct |
6 ms |
1644 KB |
Output is correct |
64 |
Correct |
0 ms |
1644 KB |
Output is correct |
65 |
Correct |
3 ms |
1644 KB |
Output is correct |
66 |
Correct |
3 ms |
1644 KB |
Output is correct |
67 |
Correct |
3 ms |
1644 KB |
Output is correct |
68 |
Correct |
3 ms |
1644 KB |
Output is correct |
69 |
Correct |
3 ms |
1644 KB |
Output is correct |
70 |
Correct |
0 ms |
1644 KB |
Output is correct |
71 |
Correct |
3 ms |
1644 KB |
Output is correct |
72 |
Correct |
3 ms |
1644 KB |
Output is correct |
73 |
Correct |
3 ms |
1644 KB |
Output is correct |
74 |
Correct |
3 ms |
1644 KB |
Output is correct |
75 |
Correct |
3 ms |
1644 KB |
Output is correct |
76 |
Correct |
3 ms |
1644 KB |
Output is correct |
77 |
Correct |
3 ms |
1644 KB |
Output is correct |
78 |
Correct |
9 ms |
1644 KB |
Output is correct |
79 |
Correct |
6 ms |
1644 KB |
Output is correct |
80 |
Correct |
6 ms |
1644 KB |
Output is correct |
81 |
Correct |
6 ms |
1644 KB |
Output is correct |
82 |
Correct |
0 ms |
1644 KB |
Output is correct |
83 |
Correct |
3 ms |
1644 KB |
Output is correct |
84 |
Correct |
3 ms |
1644 KB |
Output is correct |
85 |
Correct |
3 ms |
1644 KB |
Output is correct |
86 |
Correct |
3 ms |
1644 KB |
Output is correct |
87 |
Correct |
3 ms |
1644 KB |
Output is correct |
88 |
Correct |
6 ms |
1644 KB |
Output is correct |
89 |
Correct |
6 ms |
1644 KB |
Output is correct |
90 |
Correct |
3 ms |
1644 KB |
Output is correct |
91 |
Correct |
0 ms |
1372 KB |
Output is correct |
92 |
Correct |
0 ms |
1372 KB |
Output is correct |
93 |
Correct |
0 ms |
1372 KB |
Output is correct |
94 |
Correct |
6 ms |
1644 KB |
Output is correct |
95 |
Correct |
6 ms |
1644 KB |
Output is correct |
96 |
Correct |
0 ms |
1644 KB |
Output is correct |
97 |
Correct |
3 ms |
1644 KB |
Output is correct |
98 |
Correct |
3 ms |
1644 KB |
Output is correct |
99 |
Correct |
3 ms |
1644 KB |
Output is correct |
100 |
Correct |
3 ms |
1644 KB |
Output is correct |
101 |
Correct |
3 ms |
1644 KB |
Output is correct |
102 |
Correct |
3 ms |
1644 KB |
Output is correct |
103 |
Correct |
3 ms |
1644 KB |
Output is correct |
104 |
Correct |
3 ms |
1644 KB |
Output is correct |
105 |
Correct |
3 ms |
1644 KB |
Output is correct |
106 |
Correct |
6 ms |
1644 KB |
Output is correct |
107 |
Correct |
3 ms |
1644 KB |
Output is correct |
108 |
Correct |
3 ms |
1644 KB |
Output is correct |
109 |
Correct |
0 ms |
1644 KB |
Output is correct |
110 |
Correct |
0 ms |
1644 KB |
Output is correct |
111 |
Correct |
3 ms |
1644 KB |
Output is correct |
112 |
Correct |
0 ms |
1644 KB |
Output is correct |
113 |
Correct |
0 ms |
1644 KB |
Output is correct |
114 |
Correct |
0 ms |
1644 KB |
Output is correct |
115 |
Correct |
0 ms |
1644 KB |
Output is correct |
116 |
Correct |
0 ms |
1644 KB |
Output is correct |
117 |
Correct |
3 ms |
1644 KB |
Output is correct |
118 |
Correct |
3 ms |
1644 KB |
Output is correct |
119 |
Correct |
6 ms |
1644 KB |
Output is correct |
120 |
Correct |
6 ms |
1644 KB |
Output is correct |
121 |
Correct |
3 ms |
1644 KB |
Output is correct |
122 |
Correct |
3 ms |
1644 KB |
Output is correct |
123 |
Correct |
6 ms |
1644 KB |
Output is correct |
124 |
Correct |
3 ms |
1644 KB |
Output is correct |
125 |
Correct |
6 ms |
1644 KB |
Output is correct |
126 |
Correct |
6 ms |
1644 KB |
Output is correct |
127 |
Correct |
6 ms |
1644 KB |
Output is correct |
128 |
Correct |
13 ms |
1644 KB |
Output is correct |
129 |
Correct |
6 ms |
1644 KB |
Output is correct |
130 |
Correct |
3 ms |
1644 KB |
Output is correct |
131 |
Correct |
9 ms |
1644 KB |
Output is correct |
132 |
Correct |
3 ms |
1644 KB |
Output is correct |
133 |
Correct |
9 ms |
1644 KB |
Output is correct |
134 |
Correct |
6 ms |
1644 KB |
Output is correct |
135 |
Correct |
6 ms |
1644 KB |
Output is correct |
136 |
Correct |
6 ms |
1644 KB |
Output is correct |
137 |
Correct |
3 ms |
1644 KB |
Output is correct |
138 |
Correct |
3 ms |
1644 KB |
Output is correct |
139 |
Correct |
3 ms |
1644 KB |
Output is correct |
140 |
Correct |
3 ms |
1644 KB |
Output is correct |