oj.uz

Submission #144664

# Submission time Handle Problem Language Result Execution time Memory
144664 2019-08-17T10:47:19 Z miguel Palindrome-Free Numbers (BOI13_numbers) C++14
72.5 / 100
 6 ms 488 KB 
/*
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*/
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
#define x first
#define y second
#define pi pair <int, int>
#define vi vector <int>
#define L nod<<1
#define R ((nod<<1)|1)
#define mp make_pair
const ll mod = 1000000007;
const ll nmax=1000003;
#define int ll
int a, b;
int dp[20][11][11][2];

int f(int x){
    for(int idx=0; idx<20; idx++){
        for(int xd1=0; xd1<=10; xd1++){
            for(int xd2=0; xd2<=10; xd2++){
                for(int eq=0; eq<2; eq++) dp[idx][xd1][xd2][eq]=0;
            }
        }
    }
    if(x<=9) return x+1;
    int ans=0;
    vi v;
    while(x!=0){
        v.pb(x%10);
        x/=10;
    }
    reverse(v.begin(), v.end());
    //for(int i: v) cout<<i; cout<<" ";
    for(int i=0; i<v.size(); i++){
        if(i==0){
            for(int next=1; next<=9; next++){
                if(next>v[i]) break;
                else dp[i][0][next][(next==v[i])]=1;
            }
            continue;
        }
        else if(i==1){
            for(int xd2=1; xd2<=9; xd2++){
                for(int eq=0; eq<2; eq++){
                    for(int next=0; next<=9; next++){
                        if(eq && next>v[i]) break;
                        int ctrl=(eq&(next==v[i]));
                        if(next!=xd2) dp[i][xd2][next][ctrl]+=dp[i-1][0][xd2][eq];
                    }
                }
            }
            continue;
        }
        else{
            for(int xd1=0; xd1<=9; xd1++){
                for(int xd2=0; xd2<=9; xd2++){
                    for(int eq=0; eq<2; eq++){
                        for(int next=0; next<=9; next++){
                            if(eq && next>v[i]) break;
                            int ctrl=(eq&(next==v[i]));
                            if(next!=xd1 && next!=xd2) dp[i][xd2][next][ctrl]+=dp[i-1][xd1][xd2][eq];
                        }
                    }
                }
            }
        }
    }
    //for(int i=0; i<v.size(); i++){
    for(int xd1=0; xd1<=9; xd1++){
            for(int xd2=0; xd2<=9; xd2++){
                for(int eq=0; eq<2; eq++){
                    ans+=dp[v.size()-1][xd1][xd2][eq];
                }
            //}
            }
    }
    return ans;
}

int32_t main(){
    ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
    cin>>a>>b;
    a--;
    cout<<f(b)-f(a);
}

Compilation message

numbers.cpp: In function 'long long int f(long long int)':
numbers.cpp:57:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<v.size(); i++){
                  ~^~~~~~~~~

Subtask #1
12.5 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Correct 2 ms 376 KB Output is correct
4 Incorrect 2 ms 376 KB Output isn't correct
5 Incorrect 1 ms 376 KB Output isn't correct
6 Incorrect 2 ms 376 KB Output isn't correct
7 Incorrect 2 ms 376 KB Output isn't correct
8 Incorrect 6 ms 376 KB Output isn't correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Incorrect 3 ms 376 KB Output isn't correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Incorrect 2 ms 376 KB Output isn't correct

Subtask #2
60.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 376 KB Output isn't correct
6 Correct 2 ms 376 KB Output is correct
7 Incorrect 2 ms 376 KB Output isn't correct
8 Incorrect 2 ms 376 KB Output isn't correct
9 Incorrect 3 ms 376 KB Output isn't correct
10 Incorrect 2 ms 376 KB Output isn't correct
11 Correct 2 ms 376 KB Output is correct
12 Incorrect 2 ms 376 KB Output isn't correct
13 Incorrect 2 ms 376 KB Output isn't correct
14 Incorrect 2 ms 376 KB Output isn't correct
15 Incorrect 2 ms 376 KB Output isn't correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 2 ms 488 KB Output is correct
37 Correct 2 ms 380 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 4 ms 476 KB Output is correct
45 Correct 3 ms 376 KB Output is correct