QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#602938#9430. Left Shifting 2karito#AC ✓7ms12308kbC++171.1kb2024-10-01 13:41:132024-10-01 13:41:14

Judging History

你现在查看的是最新测评结果

  • [2024-10-01 13:41:14]
  • 评测
  • 测评结果:AC
  • 用时:7ms
  • 内存:12308kb
  • [2024-10-01 13:41:13]
  • 提交

answer

#include<iostream>
#include<vector>
using namespace std;

const int N = 1e6 + 10;

int sum[N], r[N];

void solve() {
	string s;
	cin >> s;
	int n = s.size();
	s = s + s;
	s = ' ' + s;
	int cnt=0;
	int last = 1;
	for (int i = 1; i <= 2 * n; i++) sum[i] = 0, r[i] = 0;

	for (int i = 2; i <= n*2; i++)
	{
		if (s[i] == s[i - 1])
		{
			cnt -= last / 2;
			last++;
			cnt += last / 2;
		}
		else
		{
			last = 1;
		}
		sum[i] = cnt;
	}
	// for (int i = 1; i <= 2 * n; i++) cout << sum[i] << "\n";
	int ans = n;
	r[n * 2] = n * 2;
	for (int i = n * 2-1; i >= 1; i--)
	{
		if (s[i] == s[i + 1]) r[i] = r[i + 1];
		else r[i] = i;
	}
	for (int i = n; i <= 2 * n; i++)
	{
		int l = i - n + 1;
		int t = r[l] - l + 1;
		int ss = t / 2;
		if (t >= n)
		{
			ss = n / 2;
		}
		else ss += sum[i] - sum[r[l]];
		// cout << sum[i] << " " << sum[r[l]] << " ";
		// cout << t << " ";
		// cout << ss << "\n";
		ans = min(ans, ss);
	}
	// cout << cnt << "\n";
	cout << ans << "\n";
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int T;
	cin >> T;
	while (T--) solve();
	return 0;
}

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 5588kb

input:

3
abccbbbbd
abcde
x

output:

2
0
0

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 0ms
memory: 5536kb

input:

5000
lfpbavjsmppdppkfwnyfmbdhptdswsoulrbhyjh
cfliuqnynejgnxolzbdoztclzbozqomvioszk
eiivcoqoymonrqgrjdtkts
mdcvservaxcbioopfungsgkiftchwlmtbzqgaraovjknsgiegkvdbolmeunvrxrpscnf
ujeqtidwtoikkqtygo
llma
qjfvgwrdhaazejsfgilnpmmhkefndzvyon
kzwwpdpbrudqmwmjscllnnjyoepxophcoopvfepikouinuxx
vftculoorxskpkxoz...

output:

1
0
0
0
0
0
1
4
0
0
1
1
1
1
1
3
1
0
5
6
0
0
5
2
0
1
3
2
0
3
0
1
0
1
1
0
1
4
1
3
1
0
1
5
3
0
3
0
0
1
8
1
0
6
1
2
0
1
0
0
4
1
2
4
3
1
3
2
3
1
2
1
0
0
2
0
2
2
0
4
0
5
5
0
3
0
4
1
0
2
1
0
2
0
1
6
1
2
1
3
3
3
5
2
3
0
3
5
1
3
0
0
3
0
4
5
3
2
1
1
0
0
2
0
1
1
3
3
3
1
2
0
1
1
4
3
1
3
1
1
1
2
0
1
2
0
4
0
1
1
...

result:

ok 5000 lines

Test #3:

score: 0
Accepted
time: 6ms
memory: 12308kb

input:

1
cbppzfsncqyzmuwrcvtxsciucxusskcjhaanwhqmyncytwhkubrvcqxgcehdxyewdyvpqjcmrnmlgrytrucexmmfulqbtfctehphmrzkosyvhtvjrromqncbgsjcwhmlqidkycaxyhsrduoxayntuhqubvboseeziwjvrfagsbvtxjjbexnajqapgxydwtztzbbdpoydnjipfizdfpmczgqvdmpvxbqubtygkfpdeonegfzsttirbhzkobbigwneyvtcxndfkljdvbbcfnadtfhgohfzqeidtgyandhnvb...

output:

18631

result:

ok single line: '18631'

Test #4:

score: 0
Accepted
time: 0ms
memory: 12048kb

input:

1
qokalgqjhyijyizyihdsiapbgvzxzevykavqmgqzrpjngciqcljsuplvpaziebmumatzvngwrhgsxrtcoiseihejwpewvosnrgvhoxluliuwixgxylazufebrwgfebazrkghgwbpqavehtnakmzqsetghmzoydwmeqvoplkyqngwrgktylrnaojpkvuwfsjbizedqwhfteyjobrglkhkeoxmxdgyuygawvdjhyakpkjchyxaqthrglcldevrzskdaotkbsbmnstrsxervdvmaylqxnwaecfmdszwedrdom...

output:

0

result:

ok single line: '0'

Test #5:

score: 0
Accepted
time: 3ms
memory: 12000kb

input:

1
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbyyqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz...

output:

246800

result:

ok single line: '246800'

Test #6:

score: 0
Accepted
time: 7ms
memory: 12100kb

input:

1
yyyyyyyyyyyyyyyyyyyyyyyyhhhhhhhhaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnhhhhhhhhhhhhhhhhhhhhhhhiiiiiiiieeeeeeeeeesssssssbbbbbbbbbbiiiiiiiwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxaaaaaaaaaaaaaaaadccccckkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkc...

output:

242729

result:

ok single line: '242729'

Extra Test:

score: 0
Extra Test Passed