Submission #23584

# Submission time Handle Problem Language Result Execution time Memory
23584 2017-05-12T17:45:02 Z repeating Boat (APIO16_boat) C++11
9 / 100
2000 ms 524288 KB
#include <bits/stdc++.h>
#define F first
#define S second
#define P push
#define pb push_back
#define MEM(dp,i) memset(dp,i,sizeof(dp))
#define W while
#define R return
#define C continue
#define SI size()
#define ll long long
#define pll pair<ll,ll>
#define SF(x) scanf("%I64d",&x)

using namespace std;
const long long INF = 2e9;
long long MOD = 1e9+7;
ll n;
ll a[555];
ll b[555];
vector<ll> dp[555];
ll DP(ll x,ll last){
    if(x==n)R 1;
    if(last>b[x])R DP(x+1,last);
    ll p=DP(x+1,last);
    last=max(last,a[x]);
    ll &ret=dp[x][last-a[x]];
    if(ret!=-1)R ret+p;
    ret=0;
    if(last<=b[x])
        ret=DP(x,last+1);
    ret%=MOD;
    R ret+p;
}
int main(){
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>a[i]>>b[i];
        for(int j=a[i];j<=b[i];j++)
            dp[i].pb(-1);
    }
    cout<<(DP(0,1)-1)%MOD;
}

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2040 KB Output is correct
2 Correct 0 ms 2040 KB Output is correct
3 Correct 0 ms 2040 KB Output is correct
4 Correct 0 ms 2040 KB Output is correct
5 Correct 0 ms 2040 KB Output is correct
6 Correct 0 ms 2040 KB Output is correct
7 Correct 0 ms 2040 KB Output is correct
8 Correct 0 ms 2040 KB Output is correct
9 Correct 0 ms 2040 KB Output is correct
10 Correct 0 ms 2040 KB Output is correct
11 Correct 0 ms 2040 KB Output is correct
12 Correct 0 ms 2040 KB Output is correct
13 Correct 0 ms 2040 KB Output is correct
14 Correct 0 ms 2040 KB Output is correct
15 Correct 0 ms 2040 KB Output is correct
16 Correct 0 ms 2040 KB Output is correct
17 Correct 0 ms 2040 KB Output is correct
18 Correct 0 ms 2040 KB Output is correct
19 Correct 0 ms 2040 KB Output is correct
20 Correct 0 ms 2040 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2040 KB Output is correct
2 Correct 0 ms 2040 KB Output is correct
3 Correct 0 ms 2040 KB Output is correct
4 Correct 0 ms 2040 KB Output is correct
5 Correct 0 ms 2040 KB Output is correct
6 Correct 0 ms 2040 KB Output is correct
7 Correct 0 ms 2040 KB Output is correct
8 Correct 0 ms 2040 KB Output is correct
9 Correct 0 ms 2040 KB Output is correct
10 Correct 0 ms 2040 KB Output is correct
11 Correct 0 ms 2040 KB Output is correct
12 Correct 0 ms 2040 KB Output is correct
13 Correct 0 ms 2040 KB Output is correct
14 Correct 0 ms 2040 KB Output is correct
15 Correct 0 ms 2040 KB Output is correct
16 Correct 0 ms 2040 KB Output is correct
17 Correct 0 ms 2040 KB Output is correct
18 Correct 0 ms 2040 KB Output is correct
19 Correct 0 ms 2040 KB Output is correct
20 Correct 0 ms 2040 KB Output is correct
21 Correct 1083 ms 12248 KB Output is correct
22 Correct 1163 ms 12076 KB Output is correct
23 Correct 1073 ms 11556 KB Output is correct
24 Correct 1533 ms 12664 KB Output is correct
25 Correct 1113 ms 12492 KB Output is correct
26 Correct 1863 ms 10076 KB Output is correct
27 Execution timed out 2000 ms 10076 KB Execution timed out
28 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Memory limit exceeded 173 ms 524288 KB Memory limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 2040 KB Output is correct
2 Correct 0 ms 2040 KB Output is correct
3 Correct 0 ms 2040 KB Output is correct
4 Correct 0 ms 2040 KB Output is correct
5 Correct 0 ms 2040 KB Output is correct
6 Correct 0 ms 2040 KB Output is correct
7 Correct 0 ms 2040 KB Output is correct
8 Correct 0 ms 2040 KB Output is correct
9 Correct 0 ms 2040 KB Output is correct
10 Correct 0 ms 2040 KB Output is correct
11 Correct 0 ms 2040 KB Output is correct
12 Correct 0 ms 2040 KB Output is correct
13 Correct 0 ms 2040 KB Output is correct
14 Correct 0 ms 2040 KB Output is correct
15 Correct 0 ms 2040 KB Output is correct
16 Correct 0 ms 2040 KB Output is correct
17 Correct 0 ms 2040 KB Output is correct
18 Correct 0 ms 2040 KB Output is correct
19 Correct 0 ms 2040 KB Output is correct
20 Correct 0 ms 2040 KB Output is correct
21 Correct 1083 ms 12248 KB Output is correct
22 Correct 1163 ms 12076 KB Output is correct
23 Correct 1073 ms 11556 KB Output is correct
24 Correct 1533 ms 12664 KB Output is correct
25 Correct 1113 ms 12492 KB Output is correct
26 Correct 1863 ms 10076 KB Output is correct
27 Execution timed out 2000 ms 10076 KB Execution timed out
28 Halted 0 ms 0 KB -