Submission #848607

#	Time	Username	Problem	Language	Result	Execution time	Memory
848607		Essa2006	Matching (CEOI11_mat)	C++14	0 / 100	346 ms	17608 KiB

mat

#ifndef _GLIBCXX_NO_ASSERT
#include <cassert>
#endif
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#if __cplusplus >= 201103L
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <cwchar>
#include <cwctype>
#endif
 
// C++
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>
 
#if __cplusplus >= 201103L
#include <array>
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#endif
using namespace std;
#define ll long long
#define endl '\n'
#define FF first
#define SS second
#define all(a) a.begin(), a.end()
#define mod (ll)(1000000007)
#define mod2 (ll)(32452867)
int mul(ll a, ll b){
    a%=mod, b%=mod;
    return (a*b)%mod;
}

int add(int a, int b){
    a%=mod, b%=mod;
    return (((a+b)%mod)+mod)%mod;
}

int pw(int a, int b){
    int res=1;
    while(b){
        if(b&1)
            res=mul(res, a);
        a=mul(a, a), b/=2;
    }
    return res;
}
int mul2(ll a, ll b){
    a%=mod2, b%=mod2;
    return (a*b)%mod2;
}

int add2(int a, int b){
    a%=mod2, b%=mod2;
    return (((a+b)%mod2)+mod2)%mod2;
}

int pw2(int a, int b){
    int res=1;
    while(b){
        if(b&1)
            res=mul2(res, a);
        a=mul2(a, a), b/=2;
    }
    return res;
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n, m;
    cin>>n>>m;
    int A[n], B[m], Val[m], Val2[m];
    int val=0, val2=0;
    vector<bool>mp(n+1);
    for(int i=0;i<n;i++){
        cin>>A[i];
        mp[A[i]]=1;
        if(mp[A[i]-1])
            val=add(val, pw(2, A[i]-1));
        if(mp[A[i]-1])
            val2=add2(val2, pw2(2, A[i]-1));
    }
    for(int j=0;j<m;j++){
        cin>>B[j];
    }
    int cur=0, cur2=0;
    for(int j=m-1;j>=m-n+1;j--){
        if(B[j]>B[j-1]){
            cur=add(cur, pw(2, n-1-(m-1-j)));
            cur2=add2(cur2, pw2(2, n-1-(m-1-j)));
        }
    }
    for(int j=m-n;j>=0;j--){
        Val[j]=cur;
        Val2[j]=cur2;
        if(!j)
            break;
        if(B[j+n-1]>B[j+n-2]){
            cur=add(cur, -pw(2, n-1));
            cur2=add2(cur2, -pw2(2, n-1));
        }
        cur=mul(cur, 2);
        cur2=mul2(cur2, 2);
        if(B[j]>B[j-1]){
            cur=add(cur, pw(2, 1));
            cur2=add2(cur2, pw2(2, 1));
        }
    }
    vector<int>Ans;
    for(int j=0;j<m;j++){
        if(Val[j]==val && Val2[j]==val2)
            Ans.push_back(j+1);
    }
    cout<<Ans.size()<<endl;
    for(int i=0;i<Ans.size();i++){
        cout<<Ans[i]<<' ';
    }
    cout<<endl;
}

Compilation message (stderr)

mat.cpp: In function 'int main()':
mat.cpp:178:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  178 |     for(int i=0;i<Ans.size();i++){
      |                 ~^~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 9
• Subtask 8: 0 / 9
• Subtask 9: 0 / 8
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10