oj.uz

Submission #553696

# Submission time Handle Problem Language Result Execution time Memory
553696 2022-04-26T16:05:12 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()
{
    //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 162 ms 19908 KB Output is correct
2 Correct 145 ms 19976 KB Output is correct
3 Correct 181 ms 20068 KB Output is correct
4 Correct 203 ms 19964 KB Output is correct
5 Correct 142 ms 19908 KB Output is correct
6 Correct 162 ms 19996 KB Output is correct
7 Correct 185 ms 20004 KB Output is correct
8 Correct 159 ms 20024 KB Output is correct
9 Correct 153 ms 19908 KB Output is correct
10 Correct 177 ms 20072 KB Output is correct
11 Correct 204 ms 19992 KB Output is correct
12 Correct 165 ms 19924 KB Output is correct
13 Correct 158 ms 20024 KB Output is correct
14 Correct 205 ms 19964 KB Output is correct
15 Correct 171 ms 19916 KB Output is correct
16 Correct 143 ms 20024 KB Output is correct
17 Correct 158 ms 20020 KB Output is correct
18 Correct 165 ms 19916 KB Output is correct
19 Correct 143 ms 19952 KB Output is correct
20 Correct 140 ms 19976 KB Output is correct

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 162 ms 19908 KB Output is correct
2 Correct 145 ms 19976 KB Output is correct
3 Correct 181 ms 20068 KB Output is correct
4 Correct 203 ms 19964 KB Output is correct
5 Correct 142 ms 19908 KB Output is correct
6 Correct 162 ms 19996 KB Output is correct
7 Correct 185 ms 20004 KB Output is correct
8 Correct 159 ms 20024 KB Output is correct
9 Correct 153 ms 19908 KB Output is correct
10 Correct 177 ms 20072 KB Output is correct
11 Correct 204 ms 19992 KB Output is correct
12 Correct 165 ms 19924 KB Output is correct
13 Correct 158 ms 20024 KB Output is correct
14 Correct 205 ms 19964 KB Output is correct
15 Correct 171 ms 19916 KB Output is correct
16 Correct 143 ms 20024 KB Output is correct
17 Correct 158 ms 20020 KB Output is correct
18 Correct 165 ms 19916 KB Output is correct
19 Correct 143 ms 19952 KB Output is correct
20 Correct 140 ms 19976 KB Output is correct
21 Execution timed out 2067 ms 4528 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 1972 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 162 ms 19908 KB Output is correct
2 Correct 145 ms 19976 KB Output is correct
3 Correct 181 ms 20068 KB Output is correct
4 Correct 203 ms 19964 KB Output is correct
5 Correct 142 ms 19908 KB Output is correct
6 Correct 162 ms 19996 KB Output is correct
7 Correct 185 ms 20004 KB Output is correct
8 Correct 159 ms 20024 KB Output is correct
9 Correct 153 ms 19908 KB Output is correct
10 Correct 177 ms 20072 KB Output is correct
11 Correct 204 ms 19992 KB Output is correct
12 Correct 165 ms 19924 KB Output is correct
13 Correct 158 ms 20024 KB Output is correct
14 Correct 205 ms 19964 KB Output is correct
15 Correct 171 ms 19916 KB Output is correct
16 Correct 143 ms 20024 KB Output is correct
17 Correct 158 ms 20020 KB Output is correct
18 Correct 165 ms 19916 KB Output is correct
19 Correct 143 ms 19952 KB Output is correct
20 Correct 140 ms 19976 KB Output is correct
21 Execution timed out 2067 ms 4528 KB Time limit exceeded
22 Halted 0 ms 0 KB -