Submission #387544

#	Time	Username	Problem	Language	Result	Execution time	Memory
387544		kimbj0709	Martian DNA (BOI18_dna)	C++14	100 / 100	116 ms	8192 KiB

dna

#include<bits/stdc++.h>
using namespace std;
#define int long long
int32_t main(){
    int no_of_input,base_length,no_of_case;
    int input1,input2;
    vector<int> vect1;
    cin >> no_of_input >> base_length >> no_of_case;
    vector<int> minimum(base_length,0);
    vector<int> countt(base_length,0);
    for(int i=0;i<no_of_input;i++){
        cin >> input1;
        vect1.push_back(input1);
    }
    for(int i=0;i<no_of_case;i++){
        cin >> input1 >> input2;
        minimum[input1] = input2;
    }
    int currhas=base_length-no_of_case;
    int pos1 = 0,pos2=0;
    int ans = INT_MAX;
    vector<int> temp(base_length,0);
    for(int i=0;i<no_of_input;i++){
        temp[vect1[i]]++;
    }
    for(int i=0;i<base_length;i++){
        if(temp[i]<minimum[i]){
            cout << "impossible";
            return 0;
        }
    }


    while(pos1<vect1.size()){
        while(pos1<vect1.size()&&currhas<base_length){
            if(countt[vect1[pos1]]==minimum[vect1[pos1]]-1){
                currhas++;
            }
            countt[vect1[pos1]]++;
            pos1++;
        }
        while(pos2<vect1.size()&&pos2<=pos1){
            if(countt[vect1[pos2]]==minimum[vect1[pos2]]){
                break;
            }
            if(pos1==pos2){
                break;
            }
            countt[vect1[pos2]]--;
            pos2++;
        }
        /*for(int i=0;i<countt.size();i++){
            cout << countt[i] << " ";
        }
        cout << endl;
        cout << pos1 << " " << pos2 << endl;*/
        ans = min(ans,pos1-pos2);
        if(pos1<vect1.size()){
            countt[vect1[pos1]]++;
            pos1++;
        }
    }
    //cout << "-------------" << endl;
    cout << ans;
}

Compilation message (stderr)

dna.cpp: In function 'int32_t main()':
dna.cpp:34:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     while(pos1<vect1.size()){
      |           ~~~~^~~~~~~~~~~~~
dna.cpp:35:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         while(pos1<vect1.size()&&currhas<base_length){
      |               ~~~~^~~~~~~~~~~~~
dna.cpp:42:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         while(pos2<vect1.size()&&pos2<=pos1){
      |               ~~~~^~~~~~~~~~~~~
dna.cpp:58:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         if(pos1<vect1.size()){
      |            ~~~~^~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 24 / 24
• Subtask 3: 28 / 28
• Subtask 4: 32 / 32