#include<bits/stdc++.h>
using namespace std;
const int MAX_ECOLE=501,INFINI=1000*1000*1000+7;
int nbEcole;
map<pair<int,int>,int> memo;
int mini[MAX_ECOLE],maxi[MAX_ECOLE];
int dyna(int idEcole,int maxMaint) {
if (idEcole==nbEcole+1) {
return 1;
}
int val=memo[make_pair(idEcole,maxMaint)];
if (val!=0) {
return val;
}
val=dyna(idEcole+1,maxMaint);
for (int i=max(maxMaint+1,mini[idEcole]);i<=maxi[idEcole];i++) {
val+=dyna(idEcole+1,i);
val%=INFINI;
}
memo[make_pair(idEcole,maxMaint)]=val;
return val;
}
int main() {
ios_base::sync_with_stdio(false);
cin>>nbEcole;
for (int i=1;i<=nbEcole;i++) {
cin>>mini[i]>>maxi[i];
}
cout<<(dyna(1,-1)+INFINI-1)%INFINI<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
58 ms |
8132 KB |
Output is correct |
2 |
Correct |
69 ms |
8096 KB |
Output is correct |
3 |
Correct |
79 ms |
8112 KB |
Output is correct |
4 |
Correct |
73 ms |
8112 KB |
Output is correct |
5 |
Correct |
57 ms |
8152 KB |
Output is correct |
6 |
Correct |
77 ms |
8164 KB |
Output is correct |
7 |
Correct |
70 ms |
8148 KB |
Output is correct |
8 |
Correct |
82 ms |
8136 KB |
Output is correct |
9 |
Correct |
74 ms |
8124 KB |
Output is correct |
10 |
Correct |
92 ms |
8116 KB |
Output is correct |
11 |
Correct |
94 ms |
8128 KB |
Output is correct |
12 |
Correct |
80 ms |
8184 KB |
Output is correct |
13 |
Correct |
77 ms |
8180 KB |
Output is correct |
14 |
Correct |
73 ms |
8184 KB |
Output is correct |
15 |
Correct |
77 ms |
8104 KB |
Output is correct |
16 |
Correct |
17 ms |
2508 KB |
Output is correct |
17 |
Correct |
18 ms |
2676 KB |
Output is correct |
18 |
Correct |
16 ms |
2620 KB |
Output is correct |
19 |
Correct |
17 ms |
2640 KB |
Output is correct |
20 |
Correct |
14 ms |
2580 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
58 ms |
8132 KB |
Output is correct |
2 |
Correct |
69 ms |
8096 KB |
Output is correct |
3 |
Correct |
79 ms |
8112 KB |
Output is correct |
4 |
Correct |
73 ms |
8112 KB |
Output is correct |
5 |
Correct |
57 ms |
8152 KB |
Output is correct |
6 |
Correct |
77 ms |
8164 KB |
Output is correct |
7 |
Correct |
70 ms |
8148 KB |
Output is correct |
8 |
Correct |
82 ms |
8136 KB |
Output is correct |
9 |
Correct |
74 ms |
8124 KB |
Output is correct |
10 |
Correct |
92 ms |
8116 KB |
Output is correct |
11 |
Correct |
94 ms |
8128 KB |
Output is correct |
12 |
Correct |
80 ms |
8184 KB |
Output is correct |
13 |
Correct |
77 ms |
8180 KB |
Output is correct |
14 |
Correct |
73 ms |
8184 KB |
Output is correct |
15 |
Correct |
77 ms |
8104 KB |
Output is correct |
16 |
Correct |
17 ms |
2508 KB |
Output is correct |
17 |
Correct |
18 ms |
2676 KB |
Output is correct |
18 |
Correct |
16 ms |
2620 KB |
Output is correct |
19 |
Correct |
17 ms |
2640 KB |
Output is correct |
20 |
Correct |
14 ms |
2580 KB |
Output is correct |
21 |
Execution timed out |
2067 ms |
2944 KB |
Time limit exceeded |
22 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2069 ms |
204 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
58 ms |
8132 KB |
Output is correct |
2 |
Correct |
69 ms |
8096 KB |
Output is correct |
3 |
Correct |
79 ms |
8112 KB |
Output is correct |
4 |
Correct |
73 ms |
8112 KB |
Output is correct |
5 |
Correct |
57 ms |
8152 KB |
Output is correct |
6 |
Correct |
77 ms |
8164 KB |
Output is correct |
7 |
Correct |
70 ms |
8148 KB |
Output is correct |
8 |
Correct |
82 ms |
8136 KB |
Output is correct |
9 |
Correct |
74 ms |
8124 KB |
Output is correct |
10 |
Correct |
92 ms |
8116 KB |
Output is correct |
11 |
Correct |
94 ms |
8128 KB |
Output is correct |
12 |
Correct |
80 ms |
8184 KB |
Output is correct |
13 |
Correct |
77 ms |
8180 KB |
Output is correct |
14 |
Correct |
73 ms |
8184 KB |
Output is correct |
15 |
Correct |
77 ms |
8104 KB |
Output is correct |
16 |
Correct |
17 ms |
2508 KB |
Output is correct |
17 |
Correct |
18 ms |
2676 KB |
Output is correct |
18 |
Correct |
16 ms |
2620 KB |
Output is correct |
19 |
Correct |
17 ms |
2640 KB |
Output is correct |
20 |
Correct |
14 ms |
2580 KB |
Output is correct |
21 |
Execution timed out |
2067 ms |
2944 KB |
Time limit exceeded |
22 |
Halted |
0 ms |
0 KB |
- |