#include <iostream>
#include <cstdio>
#include <string>
#include <sstream>
#include <algorithm>
#include <set>
#include <numeric>
#include <cmath>
#include <map>
#include <vector>
#include <queue>
#include <stack>
#include <cstring>
#include <queue>
#include <numeric>
#include <iomanip>
#define REP(i,a,b) for(int i=a;i<=b;++i)
#define FOR(i,n) for(int i=0;i<n;++i)
#define pb push_back
#define all(v) (v).begin(),(v).end()
#define sz(v) ((int)(v).size())
#define inp1(a) scanf("%d",&a)
#define inp2(a,b) scanf("%d%d",&a,&b)
#define inp3(a,b,c) scanf("%d%d%d",&a,&b,&c)
#define inp4(a,b,c,d) scanf("%d%d%d%d",&a,&b,&c,&d)
#define inp5(a,b,c,d,e) scanf("%d%d%d%d%d",&a,&b,&c,&d,&e)
#define fastio() ios_base::sync_with_stdio(false),cin.tie(NULL)
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<pll> vll;
typedef vector<vector<int> > vvi;
typedef pair<int,pair<int,int> > piii;
typedef vector<piii> viii;
const double EPSILON = 1e-9;
const double PI = acos(-1);
const int MOD = 1e9+7;
const int INF = 0x3c3c3c3c;
const long long INFL = 0x3c3c3c3c3c3c3c3c;
const int MAX_N = 102;
ll pSum[10003];
ll A[10003];
int N;
ll dp[10003];
ll go(int pos, ll sum){
if(pos==N) return dp[pos]=1;
ll& cache = dp[pos];
if(cache != -1) return cache;
cache=0;
for(int i = pos+1; i <= N; i++){
if(pSum[i]-pSum[pos]==sum){
cache+=go(i,sum);
cache%=MOD;
while(cache>=MOD)cache-=MOD;
}
}
while(cache>=MOD)cache-=MOD;
return cache;
}
int main() {
inp1(N);
FOR(i,N) scanf("%lld",A+i), pSum[i+1] = pSum[i] + A[i];
ll ans = 0;
vector<long long > valid;
for(int i=1;i<=N;i++){
if(pSum[i]!=0 && pSum[N]%pSum[i]==0)valid.push_back(pSum[i]);
}
sort(valid.begin(),valid.end());
valid.erase(unique(valid.begin(),valid.end()),valid.end());
if(pSum[N]==0)valid.clear(),valid.push_back(0);
for(int i=0;i<valid.size();i++){
memset(dp,-1,sizeof(dp));
ans=(ans%MOD+go(0,valid[i])%MOD)%MOD;
}
printf("%lld",(ans-1+MOD)%MOD);
return 0;
}
Compilation message
UV.cpp: In function 'int main()':
UV.cpp:78:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<valid.size();i++){
^
UV.cpp:66:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inp1(N);
^
UV.cpp:67:59: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
FOR(i,N) scanf("%lld",A+i), pSum[i+1] = pSum[i] + A[i];
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
2256 KB |
Output is correct |
2 |
Correct |
0 ms |
2256 KB |
Output is correct |
3 |
Correct |
0 ms |
2256 KB |
Output is correct |
4 |
Correct |
123 ms |
2596 KB |
Output is correct |
5 |
Correct |
126 ms |
2600 KB |
Output is correct |
6 |
Correct |
386 ms |
2604 KB |
Output is correct |
7 |
Correct |
89 ms |
2256 KB |
Output is correct |
8 |
Correct |
69 ms |
2256 KB |
Output is correct |
9 |
Correct |
49 ms |
2256 KB |
Output is correct |
10 |
Correct |
73 ms |
2256 KB |
Output is correct |
11 |
Correct |
79 ms |
2256 KB |
Output is correct |
12 |
Correct |
86 ms |
2256 KB |
Output is correct |
13 |
Correct |
106 ms |
2256 KB |
Output is correct |
14 |
Correct |
83 ms |
2256 KB |
Output is correct |
15 |
Correct |
76 ms |
2256 KB |
Output is correct |
16 |
Correct |
99 ms |
2256 KB |
Output is correct |
17 |
Correct |
56 ms |
2256 KB |
Output is correct |
18 |
Correct |
89 ms |
2256 KB |
Output is correct |
19 |
Correct |
0 ms |
2528 KB |
Output is correct |
20 |
Correct |
3 ms |
2528 KB |
Output is correct |
21 |
Correct |
19 ms |
2528 KB |
Output is correct |
22 |
Correct |
79 ms |
2448 KB |
Output is correct |
23 |
Correct |
106 ms |
2484 KB |
Output is correct |
24 |
Correct |
106 ms |
2496 KB |
Output is correct |
25 |
Correct |
99 ms |
2508 KB |
Output is correct |
26 |
Correct |
96 ms |
2504 KB |
Output is correct |
27 |
Correct |
93 ms |
2256 KB |
Output is correct |
28 |
Correct |
103 ms |
2396 KB |
Output is correct |
29 |
Correct |
133 ms |
2256 KB |
Output is correct |
30 |
Correct |
153 ms |
2256 KB |
Output is correct |
31 |
Correct |
116 ms |
2256 KB |
Output is correct |
32 |
Correct |
136 ms |
2256 KB |
Output is correct |
33 |
Correct |
133 ms |
2396 KB |
Output is correct |
34 |
Correct |
106 ms |
2256 KB |
Output is correct |
35 |
Correct |
149 ms |
2256 KB |
Output is correct |
36 |
Correct |
186 ms |
2256 KB |
Output is correct |
37 |
Correct |
169 ms |
2256 KB |
Output is correct |
38 |
Correct |
173 ms |
2256 KB |
Output is correct |
39 |
Correct |
166 ms |
2256 KB |
Output is correct |
40 |
Correct |
116 ms |
2256 KB |
Output is correct |
41 |
Correct |
166 ms |
2256 KB |
Output is correct |
42 |
Correct |
89 ms |
2256 KB |
Output is correct |
43 |
Correct |
173 ms |
2256 KB |
Output is correct |
44 |
Correct |
109 ms |
2256 KB |
Output is correct |
45 |
Correct |
166 ms |
2256 KB |
Output is correct |
46 |
Correct |
166 ms |
2256 KB |
Output is correct |
47 |
Correct |
129 ms |
2256 KB |
Output is correct |
48 |
Correct |
119 ms |
2256 KB |
Output is correct |
49 |
Correct |
76 ms |
2256 KB |
Output is correct |
50 |
Correct |
129 ms |
2256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
83 ms |
2256 KB |
Output is correct |
2 |
Correct |
56 ms |
2256 KB |
Output is correct |
3 |
Correct |
49 ms |
2256 KB |
Output is correct |
4 |
Correct |
79 ms |
2256 KB |
Output is correct |
5 |
Correct |
146 ms |
2256 KB |
Output is correct |
6 |
Correct |
129 ms |
2256 KB |
Output is correct |
7 |
Correct |
139 ms |
2256 KB |
Output is correct |
8 |
Correct |
76 ms |
2256 KB |
Output is correct |
9 |
Correct |
13 ms |
2256 KB |
Output is correct |
10 |
Correct |
0 ms |
2256 KB |
Output is correct |
11 |
Correct |
0 ms |
2256 KB |
Output is correct |
12 |
Correct |
0 ms |
2256 KB |
Output is correct |
13 |
Correct |
0 ms |
2256 KB |
Output is correct |
14 |
Correct |
0 ms |
2256 KB |
Output is correct |
15 |
Correct |
0 ms |
2256 KB |
Output is correct |
16 |
Correct |
3 ms |
2256 KB |
Output is correct |
17 |
Correct |
123 ms |
2604 KB |
Output is correct |
18 |
Correct |
123 ms |
2596 KB |
Output is correct |
19 |
Correct |
383 ms |
2600 KB |
Output is correct |
20 |
Correct |
3 ms |
2528 KB |
Output is correct |
21 |
Correct |
3 ms |
2528 KB |
Output is correct |
22 |
Correct |
9 ms |
2528 KB |
Output is correct |
23 |
Correct |
169 ms |
2524 KB |
Output is correct |
24 |
Correct |
313 ms |
2556 KB |
Output is correct |
25 |
Correct |
376 ms |
2596 KB |
Output is correct |
26 |
Correct |
383 ms |
2600 KB |
Output is correct |
27 |
Correct |
33 ms |
2256 KB |
Output is correct |
28 |
Correct |
36 ms |
2256 KB |
Output is correct |
29 |
Correct |
26 ms |
2256 KB |
Output is correct |
30 |
Correct |
29 ms |
2256 KB |
Output is correct |
31 |
Correct |
29 ms |
2264 KB |
Output is correct |
32 |
Correct |
33 ms |
2256 KB |
Output is correct |
33 |
Correct |
29 ms |
2256 KB |
Output is correct |
34 |
Correct |
29 ms |
2256 KB |
Output is correct |
35 |
Correct |
26 ms |
2256 KB |
Output is correct |
36 |
Correct |
29 ms |
2256 KB |
Output is correct |
37 |
Correct |
29 ms |
2256 KB |
Output is correct |
38 |
Correct |
36 ms |
2256 KB |
Output is correct |
39 |
Correct |
29 ms |
2256 KB |
Output is correct |
40 |
Correct |
59 ms |
2256 KB |
Output is correct |
41 |
Correct |
66 ms |
2256 KB |
Output is correct |
42 |
Correct |
43 ms |
2256 KB |
Output is correct |
43 |
Correct |
43 ms |
2256 KB |
Output is correct |
44 |
Correct |
73 ms |
2256 KB |
Output is correct |
45 |
Correct |
56 ms |
2256 KB |
Output is correct |
46 |
Correct |
9 ms |
2256 KB |
Output is correct |
47 |
Correct |
13 ms |
2256 KB |
Output is correct |
48 |
Correct |
13 ms |
2256 KB |
Output is correct |
49 |
Correct |
16 ms |
2256 KB |
Output is correct |
50 |
Correct |
16 ms |
2256 KB |
Output is correct |
51 |
Correct |
16 ms |
2256 KB |
Output is correct |
52 |
Correct |
6 ms |
2256 KB |
Output is correct |
53 |
Correct |
0 ms |
2256 KB |
Output is correct |
54 |
Correct |
6 ms |
2256 KB |
Output is correct |
55 |
Correct |
3 ms |
2256 KB |
Output is correct |
56 |
Correct |
3 ms |
2256 KB |
Output is correct |
57 |
Correct |
3 ms |
2256 KB |
Output is correct |
58 |
Correct |
6 ms |
2256 KB |
Output is correct |
59 |
Correct |
3 ms |
2256 KB |
Output is correct |
60 |
Correct |
6 ms |
2256 KB |
Output is correct |
61 |
Correct |
3 ms |
2256 KB |
Output is correct |
62 |
Correct |
3 ms |
2256 KB |
Output is correct |
63 |
Correct |
6 ms |
2256 KB |
Output is correct |
64 |
Correct |
56 ms |
2528 KB |
Output is correct |
65 |
Correct |
86 ms |
2396 KB |
Output is correct |
66 |
Correct |
76 ms |
2396 KB |
Output is correct |
67 |
Correct |
99 ms |
2396 KB |
Output is correct |
68 |
Correct |
86 ms |
2396 KB |
Output is correct |
69 |
Correct |
126 ms |
2396 KB |
Output is correct |
70 |
Correct |
136 ms |
2396 KB |
Output is correct |
71 |
Correct |
126 ms |
2396 KB |
Output is correct |
72 |
Correct |
143 ms |
2396 KB |
Output is correct |
73 |
Correct |
156 ms |
2396 KB |
Output is correct |
74 |
Correct |
159 ms |
2396 KB |
Output is correct |
75 |
Correct |
176 ms |
2256 KB |
Output is correct |
76 |
Correct |
136 ms |
2256 KB |
Output is correct |
77 |
Correct |
169 ms |
2256 KB |
Output is correct |
78 |
Correct |
186 ms |
2256 KB |
Output is correct |
79 |
Correct |
189 ms |
2256 KB |
Output is correct |
80 |
Correct |
179 ms |
2256 KB |
Output is correct |
81 |
Correct |
136 ms |
2256 KB |
Output is correct |
82 |
Correct |
139 ms |
2396 KB |
Output is correct |
83 |
Correct |
173 ms |
2256 KB |
Output is correct |
84 |
Correct |
136 ms |
2256 KB |
Output is correct |
85 |
Correct |
129 ms |
2256 KB |
Output is correct |
86 |
Correct |
153 ms |
2256 KB |
Output is correct |
87 |
Correct |
163 ms |
2256 KB |
Output is correct |
88 |
Correct |
159 ms |
2256 KB |
Output is correct |
89 |
Correct |
159 ms |
2256 KB |
Output is correct |
90 |
Correct |
116 ms |
2256 KB |
Output is correct |
91 |
Correct |
0 ms |
2256 KB |
Output is correct |
92 |
Correct |
0 ms |
2256 KB |
Output is correct |
93 |
Correct |
0 ms |
2256 KB |
Output is correct |
94 |
Correct |
123 ms |
2596 KB |
Output is correct |
95 |
Correct |
126 ms |
2600 KB |
Output is correct |
96 |
Correct |
386 ms |
2604 KB |
Output is correct |
97 |
Correct |
89 ms |
2256 KB |
Output is correct |
98 |
Correct |
69 ms |
2256 KB |
Output is correct |
99 |
Correct |
49 ms |
2256 KB |
Output is correct |
100 |
Correct |
73 ms |
2256 KB |
Output is correct |
101 |
Correct |
79 ms |
2256 KB |
Output is correct |
102 |
Correct |
86 ms |
2256 KB |
Output is correct |
103 |
Correct |
106 ms |
2256 KB |
Output is correct |
104 |
Correct |
83 ms |
2256 KB |
Output is correct |
105 |
Correct |
76 ms |
2256 KB |
Output is correct |
106 |
Correct |
99 ms |
2256 KB |
Output is correct |
107 |
Correct |
56 ms |
2256 KB |
Output is correct |
108 |
Correct |
89 ms |
2256 KB |
Output is correct |
109 |
Correct |
0 ms |
2528 KB |
Output is correct |
110 |
Correct |
3 ms |
2528 KB |
Output is correct |
111 |
Correct |
19 ms |
2528 KB |
Output is correct |
112 |
Correct |
79 ms |
2448 KB |
Output is correct |
113 |
Correct |
106 ms |
2484 KB |
Output is correct |
114 |
Correct |
106 ms |
2496 KB |
Output is correct |
115 |
Correct |
99 ms |
2508 KB |
Output is correct |
116 |
Correct |
96 ms |
2504 KB |
Output is correct |
117 |
Correct |
93 ms |
2256 KB |
Output is correct |
118 |
Correct |
103 ms |
2396 KB |
Output is correct |
119 |
Correct |
133 ms |
2256 KB |
Output is correct |
120 |
Correct |
153 ms |
2256 KB |
Output is correct |
121 |
Correct |
116 ms |
2256 KB |
Output is correct |
122 |
Correct |
136 ms |
2256 KB |
Output is correct |
123 |
Correct |
133 ms |
2396 KB |
Output is correct |
124 |
Correct |
106 ms |
2256 KB |
Output is correct |
125 |
Correct |
149 ms |
2256 KB |
Output is correct |
126 |
Correct |
186 ms |
2256 KB |
Output is correct |
127 |
Correct |
169 ms |
2256 KB |
Output is correct |
128 |
Correct |
173 ms |
2256 KB |
Output is correct |
129 |
Correct |
166 ms |
2256 KB |
Output is correct |
130 |
Correct |
116 ms |
2256 KB |
Output is correct |
131 |
Correct |
166 ms |
2256 KB |
Output is correct |
132 |
Correct |
89 ms |
2256 KB |
Output is correct |
133 |
Correct |
173 ms |
2256 KB |
Output is correct |
134 |
Correct |
109 ms |
2256 KB |
Output is correct |
135 |
Correct |
166 ms |
2256 KB |
Output is correct |
136 |
Correct |
166 ms |
2256 KB |
Output is correct |
137 |
Correct |
129 ms |
2256 KB |
Output is correct |
138 |
Correct |
119 ms |
2256 KB |
Output is correct |
139 |
Correct |
76 ms |
2256 KB |
Output is correct |
140 |
Correct |
129 ms |
2256 KB |
Output is correct |