oj.uz

Submission #553924

# Submission time Handle Problem Language Result Execution time Memory
553924 2022-04-27T10:44:26 Z ala2 Boat (APIO16_boat) C++14
9 / 100
 2000 ms 524288 KB 
#include <bits/stdc++.h>
#define int long long
#define F first
#define S second
#define pb push_back
#define B begin()
#define E end()
 
using namespace std;
int n;
int a[1001000];
int b[1000100];
map<pair<pair<int,int>,int>,int>dp;
map<pair<pair<int,int>,int>,int>go;
const int mod=1e9+7;
//dp[ { {i,last},pl } ]
int f(int i,int last,int pl)
{
    if(go[ { {i,last},pl } ]!=0)
        return dp[ { {i,last},pl } ]%mod;
    if(i==n+1)
        return 1;
    int g=f(i+1,last,pl);
    for(int j=a[i];j<=b[i];j++)
    if(j>a[last]+pl)
        g+=f(i+1,i,j-a[i]);
    //cout<<"        "<<i<<"   "<<last<<"   "<<pl<<endl;
    go[ { {i,last},pl } ]=1;
    return dp[ { {i,last},pl } ]=g%mod;
}
signed main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
    //memset(dp,-1,sizeof dp);
    cin>>n;
    for(int i=1;i<=n;i++){
        //a[i]=n-i;
        cin>>a[i]>>b[i];
    }
        cout<<f(1,0,0)-1<<endl;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 20044 KB Output is correct
2 Correct 143 ms 20044 KB Output is correct
3 Correct 144 ms 19940 KB Output is correct
4 Correct 140 ms 19916 KB Output is correct
5 Correct 140 ms 19984 KB Output is correct
6 Correct 152 ms 19928 KB Output is correct
7 Correct 155 ms 19988 KB Output is correct
8 Correct 154 ms 19992 KB Output is correct
9 Correct 160 ms 19952 KB Output is correct
10 Correct 153 ms 20016 KB Output is correct
11 Correct 165 ms 20008 KB Output is correct
12 Correct 153 ms 20024 KB Output is correct
13 Correct 152 ms 20012 KB Output is correct
14 Correct 175 ms 20064 KB Output is correct
15 Correct 150 ms 20024 KB Output is correct
16 Correct 145 ms 19976 KB Output is correct
17 Correct 142 ms 20024 KB Output is correct
18 Correct 153 ms 20032 KB Output is correct
19 Correct 139 ms 19932 KB Output is correct
20 Correct 139 ms 20000 KB Output is correct

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 20044 KB Output is correct
2 Correct 143 ms 20044 KB Output is correct
3 Correct 144 ms 19940 KB Output is correct
4 Correct 140 ms 19916 KB Output is correct
5 Correct 140 ms 19984 KB Output is correct
6 Correct 152 ms 19928 KB Output is correct
7 Correct 155 ms 19988 KB Output is correct
8 Correct 154 ms 19992 KB Output is correct
9 Correct 160 ms 19952 KB Output is correct
10 Correct 153 ms 20016 KB Output is correct
11 Correct 165 ms 20008 KB Output is correct
12 Correct 153 ms 20024 KB Output is correct
13 Correct 152 ms 20012 KB Output is correct
14 Correct 175 ms 20064 KB Output is correct
15 Correct 150 ms 20024 KB Output is correct
16 Correct 145 ms 19976 KB Output is correct
17 Correct 142 ms 20024 KB Output is correct
18 Correct 153 ms 20032 KB Output is correct
19 Correct 139 ms 19932 KB Output is correct
20 Correct 139 ms 20000 KB Output is correct
21 Execution timed out 2076 ms 5020 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 1845 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 20044 KB Output is correct
2 Correct 143 ms 20044 KB Output is correct
3 Correct 144 ms 19940 KB Output is correct
4 Correct 140 ms 19916 KB Output is correct
5 Correct 140 ms 19984 KB Output is correct
6 Correct 152 ms 19928 KB Output is correct
7 Correct 155 ms 19988 KB Output is correct
8 Correct 154 ms 19992 KB Output is correct
9 Correct 160 ms 19952 KB Output is correct
10 Correct 153 ms 20016 KB Output is correct
11 Correct 165 ms 20008 KB Output is correct
12 Correct 153 ms 20024 KB Output is correct
13 Correct 152 ms 20012 KB Output is correct
14 Correct 175 ms 20064 KB Output is correct
15 Correct 150 ms 20024 KB Output is correct
16 Correct 145 ms 19976 KB Output is correct
17 Correct 142 ms 20024 KB Output is correct
18 Correct 153 ms 20032 KB Output is correct
19 Correct 139 ms 19932 KB Output is correct
20 Correct 139 ms 20000 KB Output is correct
21 Execution timed out 2076 ms 5020 KB Time limit exceeded
22 Halted 0 ms 0 KB -