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Submission #631915

# Submission time Handle Problem Language Result Execution time Memory
631915 2022-08-19T07:01:22 Z Mahdi Misspelling (JOI22_misspelling) C++17
100 / 100
 2684 ms 296092 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#define all(v) v.begin(), v.end()
#define F first
#define S second
typedef pair<int, int> pii;
typedef long long ll;
const int N=5e5+5, M=1e9+7;
int n, m, a[N], b[N], dp[30], s[30], t[30];

int main(){
    cin>>n>>m;
    for(int i=0;i<m;++i){
        int x, y;
        cin>>x>>y;
        if(x<y)
            a[x]=max(a[x], y);
        else
            b[y]=max(x, b[y]);
    }
    priority_queue<pair<pii, int>>mx, mn;
    fill(dp, dp+26, 1);
    for(int i=n-1;i>=1;--i){
        s[0]=0;
        for(int j=1;j<26;++j){
            s[j]=s[j-1]+dp[j-1];
            if(s[j]>=M)
                s[j]-=M;
        }
        t[25]=0;
        for(int j=24;j>=0;--j){
            t[j]=t[j+1]+dp[j+1];
            if(t[j]>=M)
                t[j]-=M;
        }
        for(int j=0;j<26;++j){
            mx.push({{-i, j}, t[j]});
            mn.push({{-i, j}, s[j]});
            s[j]+=t[j];
            if(s[j]>=M)
                s[j]-=M;
            dp[j]+=s[j];
            if(dp[j]>=M)
                dp[j]-=M;
        }
        while(!mx.empty() && -mx.top().F.F<a[i]){
            auto z=mx.top();
            dp[z.F.S]-=z.S;
            if(dp[z.F.S]<0)
                dp[z.F.S]+=M;
            mx.pop();
        }
        while(!mn.empty() && -mn.top().F.F<b[i]){
            auto z=mn.top();
            dp[z.F.S]-=z.S;
            if(dp[z.F.S]<0)
                dp[z.F.S]+=M;
            mn.pop();
        }
    }
    ll ans=0;
    for(int i=0;i<26;++i)
        ans+=dp[i];
    cout<<ans%M<<'\n';
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 316 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 5 ms 324 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1653 ms 10952 KB Output is correct
6 Correct 1708 ms 10848 KB Output is correct
7 Correct 1719 ms 10848 KB Output is correct
8 Correct 1668 ms 10828 KB Output is correct
9 Correct 1726 ms 10960 KB Output is correct
10 Correct 61 ms 696 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1852 ms 12004 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 316 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 5 ms 324 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 63 ms 712 KB Output is correct
27 Correct 70 ms 6900 KB Output is correct
28 Correct 69 ms 6888 KB Output is correct
29 Correct 83 ms 1484 KB Output is correct
30 Correct 81 ms 1492 KB Output is correct
31 Correct 295 ms 6572 KB Output is correct
32 Correct 75 ms 596 KB Output is correct
33 Correct 73 ms 640 KB Output is correct
34 Correct 90 ms 968 KB Output is correct
35 Correct 272 ms 5708 KB Output is correct
36 Correct 73 ms 12024 KB Output is correct
37 Correct 86 ms 976 KB Output is correct
38 Correct 86 ms 784 KB Output is correct
39 Correct 95 ms 1108 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 316 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 5 ms 324 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 308 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 308 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1653 ms 10952 KB Output is correct
31 Correct 1708 ms 10848 KB Output is correct
32 Correct 1719 ms 10848 KB Output is correct
33 Correct 1668 ms 10828 KB Output is correct
34 Correct 1726 ms 10960 KB Output is correct
35 Correct 61 ms 696 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1852 ms 12004 KB Output is correct
39 Correct 63 ms 712 KB Output is correct
40 Correct 70 ms 6900 KB Output is correct
41 Correct 69 ms 6888 KB Output is correct
42 Correct 83 ms 1484 KB Output is correct
43 Correct 81 ms 1492 KB Output is correct
44 Correct 295 ms 6572 KB Output is correct
45 Correct 75 ms 596 KB Output is correct
46 Correct 73 ms 640 KB Output is correct
47 Correct 90 ms 968 KB Output is correct
48 Correct 272 ms 5708 KB Output is correct
49 Correct 73 ms 12024 KB Output is correct
50 Correct 86 ms 976 KB Output is correct
51 Correct 86 ms 784 KB Output is correct
52 Correct 95 ms 1108 KB Output is correct
53 Correct 2684 ms 31288 KB Output is correct
54 Correct 1951 ms 203224 KB Output is correct
55 Correct 2396 ms 35460 KB Output is correct
56 Correct 2297 ms 35456 KB Output is correct
57 Correct 1783 ms 10840 KB Output is correct
58 Correct 1825 ms 10956 KB Output is correct
59 Correct 1733 ms 10916 KB Output is correct
60 Correct 1990 ms 12080 KB Output is correct
61 Correct 2670 ms 296092 KB Output is correct
62 Correct 2078 ms 10552 KB Output is correct
63 Correct 2170 ms 8892 KB Output is correct
64 Correct 2400 ms 8188 KB Output is correct