Submission #594054

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
594054	2022-07-12 02:42:20	penguinhacker	Cubeword (CEOI19_cubeword)	C++17	100 / 100	220 ms	9260 KiB

cubeword

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ar array
const int mxN=1e5, K=62, M=998244353;
int n;
string s[mxN];
ll cnt[K][K], dp[K][K][K];
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> n;
  for (int i=0; i<n; ++i)
    cin >> s[i];
  ll ans=0;
  for (int i=3; i<=10; ++i) {
    set<string> st;
    for (int j=0; j<n; ++j)
      if (s[j].size()==i)
        for (int rep=0; rep<2; ++rep) {
          st.insert(s[j]);
          reverse(s[j].begin(), s[j].end());
        }
    memset(cnt, 0, sizeof(cnt));
    for (string x : st) {
      int a='a'<=x[0]&&x[0]<='z'?x[0]-'a':'A'<=x[0]&&x[0]<='Z'?26+x[0]-'A':52+x[0]-'0';
      int b='a'<=x.back()&&x.back()<='z'?x.back()-'a':'A'<=x.back()&&x.back()<='Z'?26+x.back()-'A':52+x.back()-'0';
 
 
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Compilation message (stderr)

cubeword.cpp: In function 'int main()':
cubeword.cpp:22:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |    if (s[j].size()==i)
      |        ~~~~~~~~~~~^~~

• Subtask 1: 21 / 21
• Subtask 2: 29 / 29
• Subtask 3: 34 / 34
• Subtask 4: 16 / 16