Submission #782798

#	Time	Username	Problem	Language	Result	Execution time	Memory
782798		canadavid1	Type Printer (IOI08_printer)	C++14	20 / 100	1078 ms	2536 KiB

printer

#include <bits/stdc++.h>
using namespace std;
#define all(x) begin(x),end(x)
using i32 = int32_t;
using i64 = int64_t;

int common_substring(string a,string b)
{
    if(a.size() < b.size()) swap(a,b);
    for(int i = b.size()-1;i >= 0; i--)
    {
        if(a.substr(0,i)==b.substr(0,i)) return i;
    }
    return 0;
}



int main()
{
    cin.tie(nullptr)->sync_with_stdio(false);
    i32 N;
    cin >> N;
    vector<string> words(N);
    for(int i = 0; i < N; i++)
    {
        cin >> words[i];
    }
    sort(all(words));
    string min_ops = "";
    do 
    {
        string curr = "";
        string ops = "";
        for(auto i : words)
        {
            i32 l = common_substring(curr,i);
            while(curr.size()>l)
            {
                curr.pop_back();
                ops.push_back('-');
            }
            curr += i.substr(l);
            ops += i.substr(l);
            ops.push_back('P');
        }
        if(min_ops.size()==0||ops.size() < min_ops.size()) min_ops = ops;
    } while(next_permutation(all(words)));
    cout << min_ops.size() << "\n";
    for(auto i : min_ops) cout << i << "\n";

}

Compilation message (stderr)

printer.cpp: In function 'int main()':
printer.cpp:38:30: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'i32' {aka 'int'} [-Wsign-compare]
   38 |             while(curr.size()>l)
      |                   ~~~~~~~~~~~^~

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