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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#203730#7109. Traveling on the Axisucup-team484WA 3ms4020kbC++17779b2023-10-06 19:43:442023-10-06 19:43:44

Judging History

你现在查看的是最新测评结果

  • [2023-10-06 19:43:44]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:4020kb
  • [2023-10-06 19:43:44]
  • 提交

answer

#include <bits/stdc++.h>
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define st first
#define nd second
using namespace std;
typedef long long ll;
const int mod = 1e9 + 7;
const int N = 1e6 + 5;

void solve() {
	string s; cin >> s;
	int n = sz(s);
	ll ans = n * 1ll * (n + 1) * 1ll * (n + 2) / 6;
	for (int i = 1; i < n; i += 2)
		s[i] ^= 1;
	vector<ll> cnt(2);
	for (int i = n - 1, f = 0; i >= 0; i--, f ^= 1) {
		s[i] -= '0';
		cnt[s[i]]++;
		if (i + 1 < n && s[i] != s[i + 1])
			cnt[s[i]] += cnt[!s[i]] + n - i - 1;
//		cout << cnt[0] << " " << cnt[1] << " " << f << endl;
		ans += cnt[f];
	}
	cout << ans << "\n";
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	int t; cin >> t; while (t--) solve();
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3612kb

input:

3
101
011
11010

output:

12
15
43

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 3ms
memory: 4020kb

input:

6107
1010101
010110100110101
1010
1010101010010101010
101011
0101101011010101010
0101101011
11011010101
010
1011010
10110101010101010100
010101010110101
10101010101011
0101010101010101011
00101010011000
1010101010010110110
01010101001010101010
101010101010101
100100101010101010
01
011
0101010100101
...

output:

96
943
26
1515
74
1587
284
345
14
106
1730
791
630
1447
807
1674
1733
736
1325
5
15
542
44
1703
1515
136
853
497
617
26
1650
683
438
26
421
14
1041
1547
96
504
131
74
567
954
771
943
5
1
321
158
786
749
206
769
46
103
233
75
559
2
100
529
253
207
197
2
197
1041
136
885
207
1
87
1636
41
343
1041
14
1...

result:

wrong answer 2nd lines differ - expected: '889', found: '943'