제출 #977114

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
977114		VMaksimoski008	Palindrome-Free Numbers (BOI13_numbers)	C++17	38.33 / 100	1078 ms	600 KiB

numbers

#include <bits/stdc++.h>

#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
//#define int long long

using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,bmi,bmi2,lzcnt,popcnt")

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;

int32_t main() {
    ios_base::sync_with_stdio(false);
    cout.tie(0); cin.tie(0);
    
    ll a, b, ans=0;
    cin >> a >> b;

    for(ll i=a; i<=b; i++) {
        bool ok = 1;
        string s = to_string(i);
        for(int j=0; j+1<s.size(); j++) {
            if(s[j] == s[j+1]) ok = 0;
            if(j+2 < s.size() && s[j] == s[j+2]) ok = 0;
        }
        ans += ok;
    }

    cout << ans << '\n';
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

numbers.cpp: In function 'int32_t main()':
numbers.cpp:34:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int j=0; j+1<s.size(); j++) {
      |                      ~~~^~~~~~~~~
numbers.cpp:36:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |             if(j+2 < s.size() && s[j] == s[j+2]) ok = 0;
      |                ~~~~^~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 13.333333333333334 / 75