Submission #742691

#	Time	Username	Problem	Language	Result	Execution time	Memory
742691		peteza	Type Printer (IOI08_printer)	C++14	50 / 100	39 ms	2392 KiB

printer

#include <bits/stdc++.h>
using namespace std;

int n;
vector<pair<string, int>> inp;
string x, lng;
string cur;
queue<char> q;

int main() {
    cin.tie(0) -> sync_with_stdio(0);
    cin >> n;
    for(int i=0;i<n;i++) {
        cin >> x;
        inp.emplace_back(x, -1);
        if(x.size() > lng.size()) lng = x;
    }
    for(int i=0;i<n;i++) {
        for(int j=0;j<inp[i].first.size();j++) {
            if(inp[i].first[j] != lng[j]) {
                inp[i].second = j;
                break;
            }
        }
        if(inp[i].second == -1) inp[i].second = x.size();
    }
    sort(inp.begin(), inp.end(), [](pair<string, int> a, pair<string, int> b){
        if(a.second == b.second) return a.first < b.first;
        else return a.second < b.second;
    });
    for(int i=0;i<n;i++) {
        while(inp[i].first.substr(0, cur.size()) != cur) cur.pop_back(), q.push('-');
        for(int j=cur.size();j<inp[i].first.size();j++) cur += inp[i].first[j], q.push(inp[i].first[j]);
        q.push('P');
    }
    cout << q.size() << '\n';
    while(!q.empty()) cout << q.front() << '\n', q.pop();
}

Compilation message (stderr)

printer.cpp: In function 'int main()':
printer.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |         for(int j=0;j<inp[i].first.size();j++) {
      |                     ~^~~~~~~~~~~~~~~~~~~~
printer.cpp:33:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for(int j=cur.size();j<inp[i].first.size();j++) cur += inp[i].first[j], q.push(inp[i].first[j]);
      |                              ~^~~~~~~~~~~~~~~~~~~~

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