Submission #886684

#	Time	Username	Problem	Language	Result	Execution time	Memory
886684		vjudge1	ZigZag (COCI17_zigzag)	C++17	0 / 80	2 ms	496 KiB

zigzag

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

//#define ONLINE_JUDGE
void solve() {
    int n, q;
    cin >> n >> q;

    vector<string> v(n +1);

    deque <int> dq[26];
    for(int i = 1; i <= n; i++) {
        cin >> v[i];

        dq[v[i][0] - 'a'].emplace_back(i);
    }

    for(int i = 0; i < 26; i++) {
        sort(dq[i].begin(), dq[i].end(), [&](const int a, const int b) -> bool {
            string &x = v[a], &y = v[b];
            for(int i = 0; i < min(x.size(), y.size()); i++) {
                if(x[i] != y[i]) {
                    return x[i] < y[i];
                } 
            }

            return x.size() < y.size();
        });
    }

    while(q--) {
        char ch;
        cin >> ch;

        ch -= 'a';

        cout << v[dq[ch].front()] << "\n";
        dq[ch].push_back(dq[ch].front());
        dq[ch].pop_front();
    }
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    for(int i = 1; i <= t; i++) {
        solve();
    }

    return 0;
}

Compilation message (stderr)

zigzag.cpp: In lambda function:
zigzag.cpp:22:30: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
   22 |             for(int i = 0; i < min(x.size(), y.size()); i++) {
      |                            ~~^~~~~~~~~~~~~~~~~~~~~~~~~
zigzag.cpp: In function 'void solve()':
zigzag.cpp:38:22: warning: array subscript has type 'char' [-Wchar-subscripts]
   38 |         cout << v[dq[ch].front()] << "\n";
      |                      ^~
zigzag.cpp:39:12: warning: array subscript has type 'char' [-Wchar-subscripts]
   39 |         dq[ch].push_back(dq[ch].front());
      |            ^~
zigzag.cpp:39:29: warning: array subscript has type 'char' [-Wchar-subscripts]
   39 |         dq[ch].push_back(dq[ch].front());
      |                             ^~
zigzag.cpp:40:12: warning: array subscript has type 'char' [-Wchar-subscripts]
   40 |         dq[ch].pop_front();
      |            ^~
zigzag.cpp: In function 'int main()':
zigzag.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen("in.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
zigzag.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |         freopen("out.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 80