#include <bits/stdc++.h>
#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;
int N;
ll dp[10003];
ll pSum[10003];
ll A[10003];
vl valid;
ll go(int pos, ll sum){
if(pos > N) return 1;
ll& cache = dp[pos];
if(cache != -1) return cache;
cache = 0;
for(int i = pos; i <= N; i++){
if(pos==1 && i==N) continue;
if(pSum[i]-pSum[pos-1] != sum) continue;
cache = (cache + go(i+1, sum)) % MOD;
}
return cache;
}
int main() {
inp1(N);
FOR(i,N){
scanf("%lld",A+i);
pSum[i+1] = pSum[i] + A[i];
valid.pb(pSum[i+1]);
}
sort(all(valid));
valid.erase(unique(all(valid)),valid.end());
ll ans = 0 ;
FOR(i,sz(valid)){
if(valid[i] && pSum[N] % valid[i]) continue;
memset(dp,-1,sizeof(dp));
ans = (ans + go(1, valid[i])) % MOD;
}
printf("%lld",ans);
return 0;
}
Compilation message
UV.cpp: In function 'int main()':
UV.cpp:51:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inp1(N);
^
UV.cpp:53:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld",A+i);
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 4 |
Correct |
136 ms |
3116 KB |
Output is correct |
| 5 |
Correct |
146 ms |
3120 KB |
Output is correct |
| 6 |
Correct |
276 ms |
3112 KB |
Output is correct |
| 7 |
Correct |
103 ms |
2536 KB |
Output is correct |
| 8 |
Correct |
83 ms |
2524 KB |
Output is correct |
| 9 |
Correct |
49 ms |
2528 KB |
Output is correct |
| 10 |
Correct |
86 ms |
2524 KB |
Output is correct |
| 11 |
Correct |
89 ms |
2524 KB |
Output is correct |
| 12 |
Correct |
96 ms |
2524 KB |
Output is correct |
| 13 |
Correct |
113 ms |
2532 KB |
Output is correct |
| 14 |
Correct |
89 ms |
2528 KB |
Output is correct |
| 15 |
Correct |
83 ms |
2524 KB |
Output is correct |
| 16 |
Correct |
106 ms |
2524 KB |
Output is correct |
| 17 |
Correct |
66 ms |
2524 KB |
Output is correct |
| 18 |
Correct |
103 ms |
2524 KB |
Output is correct |
| 19 |
Correct |
263 ms |
2524 KB |
Output is correct |
| 20 |
Correct |
159 ms |
2524 KB |
Output is correct |
| 21 |
Correct |
153 ms |
2524 KB |
Output is correct |
| 22 |
Correct |
176 ms |
2632 KB |
Output is correct |
| 23 |
Correct |
193 ms |
2696 KB |
Output is correct |
| 24 |
Correct |
163 ms |
2712 KB |
Output is correct |
| 25 |
Correct |
139 ms |
2728 KB |
Output is correct |
| 26 |
Correct |
116 ms |
2728 KB |
Output is correct |
| 27 |
Correct |
103 ms |
2524 KB |
Output is correct |
| 28 |
Correct |
116 ms |
2524 KB |
Output is correct |
| 29 |
Correct |
143 ms |
2524 KB |
Output is correct |
| 30 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 31 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 32 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 33 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 34 |
Correct |
119 ms |
2524 KB |
Output is correct |
| 35 |
Correct |
166 ms |
2524 KB |
Output is correct |
| 36 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 37 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 38 |
Correct |
193 ms |
2524 KB |
Output is correct |
| 39 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 40 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 41 |
Correct |
169 ms |
2524 KB |
Output is correct |
| 42 |
Correct |
96 ms |
2524 KB |
Output is correct |
| 43 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 44 |
Correct |
119 ms |
2524 KB |
Output is correct |
| 45 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 46 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 47 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 48 |
Correct |
149 ms |
2524 KB |
Output is correct |
| 49 |
Correct |
89 ms |
2524 KB |
Output is correct |
| 50 |
Correct |
143 ms |
2524 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
89 ms |
2532 KB |
Output is correct |
| 2 |
Correct |
59 ms |
2536 KB |
Output is correct |
| 3 |
Correct |
56 ms |
2536 KB |
Output is correct |
| 4 |
Correct |
93 ms |
2524 KB |
Output is correct |
| 5 |
Correct |
156 ms |
2524 KB |
Output is correct |
| 6 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 7 |
Correct |
153 ms |
2540 KB |
Output is correct |
| 8 |
Correct |
83 ms |
2528 KB |
Output is correct |
| 9 |
Correct |
13 ms |
2524 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 12 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 13 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 15 |
Correct |
0 ms |
2524 KB |
Output is correct |
| 16 |
Correct |
0 ms |
2524 KB |
Output is correct |
| 17 |
Correct |
153 ms |
3120 KB |
Output is correct |
| 18 |
Correct |
126 ms |
3116 KB |
Output is correct |
| 19 |
Correct |
299 ms |
3116 KB |
Output is correct |
| 20 |
Correct |
226 ms |
2524 KB |
Output is correct |
| 21 |
Correct |
199 ms |
2524 KB |
Output is correct |
| 22 |
Correct |
236 ms |
2524 KB |
Output is correct |
| 23 |
Correct |
306 ms |
2760 KB |
Output is correct |
| 24 |
Correct |
286 ms |
3040 KB |
Output is correct |
| 25 |
Correct |
289 ms |
3108 KB |
Output is correct |
| 26 |
Correct |
273 ms |
3120 KB |
Output is correct |
| 27 |
Correct |
39 ms |
2524 KB |
Output is correct |
| 28 |
Correct |
39 ms |
2524 KB |
Output is correct |
| 29 |
Correct |
29 ms |
2524 KB |
Output is correct |
| 30 |
Correct |
33 ms |
2524 KB |
Output is correct |
| 31 |
Correct |
33 ms |
2556 KB |
Output is correct |
| 32 |
Correct |
36 ms |
2524 KB |
Output is correct |
| 33 |
Correct |
29 ms |
2524 KB |
Output is correct |
| 34 |
Correct |
29 ms |
2524 KB |
Output is correct |
| 35 |
Correct |
29 ms |
2524 KB |
Output is correct |
| 36 |
Correct |
33 ms |
2524 KB |
Output is correct |
| 37 |
Correct |
29 ms |
2524 KB |
Output is correct |
| 38 |
Correct |
36 ms |
2524 KB |
Output is correct |
| 39 |
Correct |
33 ms |
2524 KB |
Output is correct |
| 40 |
Correct |
59 ms |
2524 KB |
Output is correct |
| 41 |
Correct |
73 ms |
2524 KB |
Output is correct |
| 42 |
Correct |
43 ms |
2524 KB |
Output is correct |
| 43 |
Correct |
46 ms |
2524 KB |
Output is correct |
| 44 |
Correct |
79 ms |
2524 KB |
Output is correct |
| 45 |
Correct |
59 ms |
2524 KB |
Output is correct |
| 46 |
Correct |
9 ms |
2524 KB |
Output is correct |
| 47 |
Correct |
13 ms |
2524 KB |
Output is correct |
| 48 |
Correct |
13 ms |
2524 KB |
Output is correct |
| 49 |
Correct |
19 ms |
2524 KB |
Output is correct |
| 50 |
Correct |
23 ms |
2524 KB |
Output is correct |
| 51 |
Correct |
19 ms |
2524 KB |
Output is correct |
| 52 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 53 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 54 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 55 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 56 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 57 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 58 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 59 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 60 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 61 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 62 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 63 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 64 |
Correct |
56 ms |
2524 KB |
Output is correct |
| 65 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 66 |
Correct |
169 ms |
2524 KB |
Output is correct |
| 67 |
Correct |
156 ms |
2524 KB |
Output is correct |
| 68 |
Correct |
153 ms |
2524 KB |
Output is correct |
| 69 |
Correct |
216 ms |
2524 KB |
Output is correct |
| 70 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 71 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 72 |
Correct |
193 ms |
2524 KB |
Output is correct |
| 73 |
Correct |
213 ms |
2524 KB |
Output is correct |
| 74 |
Correct |
196 ms |
2524 KB |
Output is correct |
| 75 |
Correct |
193 ms |
2524 KB |
Output is correct |
| 76 |
Correct |
136 ms |
2524 KB |
Output is correct |
| 77 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 78 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 79 |
Correct |
186 ms |
2524 KB |
Output is correct |
| 80 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 81 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 82 |
Correct |
119 ms |
2524 KB |
Output is correct |
| 83 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 84 |
Correct |
149 ms |
2524 KB |
Output is correct |
| 85 |
Correct |
116 ms |
2524 KB |
Output is correct |
| 86 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 87 |
Correct |
216 ms |
2524 KB |
Output is correct |
| 88 |
Correct |
196 ms |
2524 KB |
Output is correct |
| 89 |
Correct |
206 ms |
2524 KB |
Output is correct |
| 90 |
Correct |
139 ms |
2524 KB |
Output is correct |
| 91 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 92 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 93 |
Correct |
0 ms |
2252 KB |
Output is correct |
| 94 |
Correct |
136 ms |
3116 KB |
Output is correct |
| 95 |
Correct |
146 ms |
3120 KB |
Output is correct |
| 96 |
Correct |
276 ms |
3112 KB |
Output is correct |
| 97 |
Correct |
103 ms |
2536 KB |
Output is correct |
| 98 |
Correct |
83 ms |
2524 KB |
Output is correct |
| 99 |
Correct |
49 ms |
2528 KB |
Output is correct |
| 100 |
Correct |
86 ms |
2524 KB |
Output is correct |
| 101 |
Correct |
89 ms |
2524 KB |
Output is correct |
| 102 |
Correct |
96 ms |
2524 KB |
Output is correct |
| 103 |
Correct |
113 ms |
2532 KB |
Output is correct |
| 104 |
Correct |
89 ms |
2528 KB |
Output is correct |
| 105 |
Correct |
83 ms |
2524 KB |
Output is correct |
| 106 |
Correct |
106 ms |
2524 KB |
Output is correct |
| 107 |
Correct |
66 ms |
2524 KB |
Output is correct |
| 108 |
Correct |
103 ms |
2524 KB |
Output is correct |
| 109 |
Correct |
263 ms |
2524 KB |
Output is correct |
| 110 |
Correct |
159 ms |
2524 KB |
Output is correct |
| 111 |
Correct |
153 ms |
2524 KB |
Output is correct |
| 112 |
Correct |
176 ms |
2632 KB |
Output is correct |
| 113 |
Correct |
193 ms |
2696 KB |
Output is correct |
| 114 |
Correct |
163 ms |
2712 KB |
Output is correct |
| 115 |
Correct |
139 ms |
2728 KB |
Output is correct |
| 116 |
Correct |
116 ms |
2728 KB |
Output is correct |
| 117 |
Correct |
103 ms |
2524 KB |
Output is correct |
| 118 |
Correct |
116 ms |
2524 KB |
Output is correct |
| 119 |
Correct |
143 ms |
2524 KB |
Output is correct |
| 120 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 121 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 122 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 123 |
Correct |
146 ms |
2524 KB |
Output is correct |
| 124 |
Correct |
119 ms |
2524 KB |
Output is correct |
| 125 |
Correct |
166 ms |
2524 KB |
Output is correct |
| 126 |
Correct |
176 ms |
2524 KB |
Output is correct |
| 127 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 128 |
Correct |
193 ms |
2524 KB |
Output is correct |
| 129 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 130 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 131 |
Correct |
169 ms |
2524 KB |
Output is correct |
| 132 |
Correct |
96 ms |
2524 KB |
Output is correct |
| 133 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 134 |
Correct |
119 ms |
2524 KB |
Output is correct |
| 135 |
Correct |
179 ms |
2524 KB |
Output is correct |
| 136 |
Correct |
183 ms |
2524 KB |
Output is correct |
| 137 |
Correct |
129 ms |
2524 KB |
Output is correct |
| 138 |
Correct |
149 ms |
2524 KB |
Output is correct |
| 139 |
Correct |
89 ms |
2524 KB |
Output is correct |
| 140 |
Correct |
143 ms |
2524 KB |
Output is correct |
