Submission #923383

#	Time	Username	Problem	Language	Result	Execution time	Memory
923383		vjudge1	Hidden Sequence (info1cup18_hidden)	C++11	34 / 100	5 ms	692 KiB

hidden

#include <bits/stdc++.h>
#include "grader.h"
using namespace std;
// vector<int>s={0,0,1,1};
// bool isSubsequence(vector<int>t){
//     int p=0;
//     for(auto u:s){
//         if(p<t.size() and u==t[p]){
//             p++;
//         }
//     }
//     return p==t.size();
// }
vector<int>findSequence(int n){
    vector<int>t;
    while(t.size()<=n and isSubsequence(t)){
        t.push_back(t.size()%2);
    }
    t.pop_back();
    if(t.size()<n){
        t.insert(t.begin(),1);
        if(!isSubsequence(t)){
            t.erase(t.begin());
        }
    }
    vector<int>ans;
    for(int i=0;i<t.size();i++){
        vector<int>r=t;
        int cnt=0;
        while(r.size()<=n and isSubsequence(r)){
            r.insert(r.begin()+i+cnt,t[i]);
            cnt++;
        }
        for(int j=1;j<=cnt;j++){
            ans.push_back(t[i]);
        }
    }
    // for(auto u:ans){
    //     cout<<u<<' ';
    // }
    // cout<<endl;
    return ans;
}

Compilation message (stderr)

hidden.cpp: In function 'std::vector<int> findSequence(int)':
hidden.cpp:16:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |     while(t.size()<=n and isSubsequence(t)){
      |           ~~~~~~~~^~~
hidden.cpp:20:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(t.size()<n){
      |        ~~~~~~~~^~
hidden.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0;i<t.size();i++){
      |                 ~^~~~~~~~~
hidden.cpp:30:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |         while(r.size()<=n and isSubsequence(r)){
      |               ~~~~~~~~^~~
grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 |     fprintf (fifo_out, "%d\n", ans.size ());
      |                         ~^     ~~~~~~~~~~~
      |                          |              |
      |                          int            std::vector<int>::size_type {aka long unsigned int}
      |                         %ld
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i=0; i<ans.size () && i < N; i++)
      |                   ~^~~~~~~~~~~~

• Subtask 1: 10 / 20
• Subtask 2: 24 / 80