Submission #1120344

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120344		vjudge1	Palindrome-Free Numbers (BOI13_numbers)	C++17	21.25 / 100	1088 ms	508 KiB

numbers

#include <bits/stdc++.h>
using namespace std;
 
#define SPEED                     \
    ios_base::sync_with_stdio(0); \
    cin.tie(NULL);                \
    cout.tie(NULL);
 
#define pb push_back
#define endl "\n"
#define ALL(x) x.begin(), x.end()
#define intt long long
 
const intt mxN = 2e5 + 5;

void solve() {
    intt a, b;
    cin >> a >> b;
    intt ans = 0;
    vector<intt> arr;
    for(intt cur = a; cur <= b; cur++) {
        intt eded = cur;
        vector<intt>hmm;
        while(eded) {
            hmm.pb(eded % 10);
            eded /= 10;
        }
        if(hmm.size() == 1) continue;
        if(hmm.size() == 2) continue;
        if(hmm.size() == 3) {
            if(hmm[0] == hmm[1] || hmm[1] == hmm[2] || hmm[0] == hmm[2]) {
                continue;
            } else {
                ans++;
                continue;
            }
        }
        for(intt i = 1; i < hmm.size(); i++) {
            if(hmm[i] == hmm[i-1]) {
                continue;
            }
        }
        bool ok = true;
        for(intt i = 0; i < hmm.size(); i++) {
            for(intt j = i + 1; j < hmm.size(); j++) {
                intt ind = 0;
                bool is = true;
                while(i + ind < j - ind) {
                    if(hmm[i + ind] != hmm[j-ind]){
                        is = false;
                        break;
                    }
                    ind++;
                }
                if(is) {
                    ok = false;
                    break;
                }
            }
            if(!ok) break;
        }
        if(ok){
            ans++;
        }
    }
    cout << ans << endl;
}

int main(){
    SPEED;
    int tst = 1, i = 1;
    // cin >> tst;
    while(tst--) {
        solve();
    }
    return 0;
}

Compilation message (stderr)

numbers.cpp: In function 'void solve()':
numbers.cpp:38:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for(intt i = 1; i < hmm.size(); i++) {
      |                         ~~^~~~~~~~~~~~
numbers.cpp:44:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for(intt i = 0; i < hmm.size(); i++) {
      |                         ~~^~~~~~~~~~~~
numbers.cpp:45:35: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |             for(intt j = i + 1; j < hmm.size(); j++) {
      |                                 ~~^~~~~~~~~~~~
numbers.cpp: In function 'int main()':
numbers.cpp:71:18: warning: unused variable 'i' [-Wunused-variable]
   71 |     int tst = 1, i = 1;
      |                  ^

• Subtask 1: 11.25 / 25
• Subtask 2: 10 / 75