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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#630119#8527. Power DivisionsCorycle#WA 5ms22120kbC++14693b2024-10-11 16:34:092024-10-11 16:34:15

Judging History

你现在查看的是最新测评结果

  • [2024-10-11 16:34:15]
  • 评测
  • 测评结果:WA
  • 用时:5ms
  • 内存:22120kb
  • [2024-10-11 16:34:09]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int Mod=1e9+7;
const int N=3e5+5;
int read(){
    int s=0,f=1;char c=getchar();
    while(c<'0'||c>'9'){if(c=='-')f=-1;c=getchar();}
    while(c>='0'&&c<='9'){s=s*10+c-'0';c=getchar();}
    return s*f;
}
int n,a[N],f[N];
unordered_map<int,int>pos[N];
int main(){
    n=read();
    f[0]=1;
    for(int i=1;i<=n;i++){
        a[i]=read();
        int num=a[i];
        pos[i][a[i]]=i;
        for(int j=i;j>=1;){
            f[i]=(f[i]+f[j-1])%Mod;
            pos[i][num+1]=pos[j-1][num];
            j=pos[j-1][num];
            num++;
        }
    }
    printf("%d\n",f[n]);
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 22120kb

input:

5
2 0 0 1 1

output:

6

result:

ok 1 number(s): "6"

Test #2:

score: 0
Accepted
time: 3ms
memory: 21256kb

input:

1
0

output:

1

result:

ok 1 number(s): "1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 22064kb

input:

2
1 1

output:

2

result:

ok 1 number(s): "2"

Test #4:

score: 0
Accepted
time: 0ms
memory: 22060kb

input:

3
2 1 1

output:

3

result:

ok 1 number(s): "3"

Test #5:

score: 0
Accepted
time: 2ms
memory: 21092kb

input:

4
3 2 2 3

output:

4

result:

ok 1 number(s): "4"

Test #6:

score: 0
Accepted
time: 5ms
memory: 21872kb

input:

5
3 4 4 2 4

output:

2

result:

ok 1 number(s): "2"

Test #7:

score: -100
Wrong Answer
time: 4ms
memory: 20840kb

input:

7
3 4 3 5 6 3 4

output:

1

result:

wrong answer 1st numbers differ - expected: '6', found: '1'