Submission #18,799

2025-11-05 07:11:26

cpp17

Accepted 100/100

4ms

556 KiB

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

void solve() {
        int ans = 0, n; cin >> n; cin.ignore();
        while (n--) {
                string s; getline(cin, s);
                int a[26] = {0}; for (char& e : s) static_cast<int>(e) < 97 ? ++a[e - 65] : ++a[e - 97];
                if (none_of(a, a + 26, [](int e){ return e > 2; })) ++ans; }
        cout << ans << '\n'; }

int main() { ios::sync_with_stdio(false); cin.tie(nullptr); solve(); return 0; }

	Sum	Test	Verdict	Time	Memory
subtask1	0/0
		1	Accepted	1ms	508 KiB
		2	Accepted	1ms	316 KiB
subtask2	30/30
		3	Accepted	1ms	316 KiB
		4	Accepted	1ms	328 KiB
		5	Accepted	1ms	500 KiB
		6	Accepted	1ms	316 KiB
		7	Accepted	2ms	316 KiB
subtask3	50/50
		8	Accepted	1ms	316 KiB
		9	Accepted	1ms	316 KiB
		10	Accepted	1ms	316 KiB
		11	Accepted	1ms	316 KiB
		12	Accepted	1ms	316 KiB
		13	Accepted	1ms	316 KiB
subtask4	20/20
		14	Accepted	1ms	316 KiB
		15	Accepted	2ms	556 KiB
		16	Accepted	2ms	316 KiB
		17	Accepted	3ms	500 KiB
		18	Accepted	4ms	428 KiB
		19	Accepted	4ms	316 KiB
		20	Accepted	4ms	332 KiB