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
#682341#9430. Left Shifting 2LautisticycAC ✓3ms4924kbC++141.1kb2024-10-27 15:04:362024-10-27 15:04:36

Judging History

你现在查看的是最新测评结果

  • [2024-10-27 15:04:36]
  • 评测
  • 测评结果:AC
  • 用时:3ms
  • 内存:4924kb
  • [2024-10-27 15:04:36]
  • 提交

answer

	/*
	对于一坨颜色块(a)。
	我们需要a/2的步数。
	维护一下走了。
	*/
	#include<bits/stdc++.h>
	using namespace std;
	int cas,n,ans,now,lef,rig;
	char s[1000010];
	bool flag;
	int main()
	{
		scanf("%d",&cas);
		while(cas--)
		{
			scanf("%s",s+1);
			n=strlen(s+1);
			flag=1;
			for(int i=1;i<=n;++i)
			{
				s[i+n]=s[i];
				if(i>1&&s[i]!=s[i-1])	flag=0;
			}
			if(flag)
			{
				printf("%d\n",n/2);
				continue;
			}
			now=0;
			for(int i=1;i<n;++i)
			{
				if(s[i]==s[i+1])
				{
					++now;
					++i;
				}
			}
			lef=1;
			while(s[lef+1]==s[1]&&lef<n)	++lef;
			rig=1;
			while(s[n-rig]==s[n]&&rig<n)	++rig;
			ans=now;
			// printf("    %d\n",now);
			for(int i=2;i<=n;++i)
			{
				now-=(lef/2);
				--lef;
				if(!lef)
				{
					lef=1;
					while(s[lef+i]==s[i]&&lef<n)	++lef;
				}
				else	now+=(lef/2);
				if(s[i+n-1]==s[i+n-2])
				{
					++rig;
					if(rig%2==0)	++now;
				}
				else	rig=1;
				ans=min(ans,now);
				// printf("          %d\n",now);
			}
			printf("%d\n",ans);
		}
		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: 0ms
memory: 3796kb

input:

3
abccbbbbd
abcde
x

output:

2
0
0

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 3ms
memory: 3784kb

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: 3ms
memory: 4752kb

input:

1
cbppzfsncqyzmuwrcvtxsciucxusskcjhaanwhqmyncytwhkubrvcqxgcehdxyewdyvpqjcmrnmlgrytrucexmmfulqbtfctehphmrzkosyvhtvjrromqncbgsjcwhmlqidkycaxyhsrduoxayntuhqubvboseeziwjvrfagsbvtxjjbexnajqapgxydwtztzbbdpoydnjipfizdfpmczgqvdmpvxbqubtygkfpdeonegfzsttirbhzkobbigwneyvtcxndfkljdvbbcfnadtfhgohfzqeidtgyandhnvb...

output:

18631

result:

ok single line: '18631'

Test #4:

score: 0
Accepted
time: 3ms
memory: 4924kb

input:

1
qokalgqjhyijyizyihdsiapbgvzxzevykavqmgqzrpjngciqcljsuplvpaziebmumatzvngwrhgsxrtcoiseihejwpewvosnrgvhoxluliuwixgxylazufebrwgfebazrkghgwbpqavehtnakmzqsetghmzoydwmeqvoplkyqngwrgktylrnaojpkvuwfsjbizedqwhfteyjobrglkhkeoxmxdgyuygawvdjhyakpkjchyxaqthrglcldevrzskdaotkbsbmnstrsxervdvmaylqxnwaecfmdszwedrdom...

output:

0

result:

ok single line: '0'

Test #5:

score: 0
Accepted
time: 3ms
memory: 4860kb

input:

1
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbyyqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz...

output:

246800

result:

ok single line: '246800'

Test #6:

score: 0
Accepted
time: 0ms
memory: 4856kb

input:

1
yyyyyyyyyyyyyyyyyyyyyyyyhhhhhhhhaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnhhhhhhhhhhhhhhhhhhhhhhhiiiiiiiieeeeeeeeeesssssssbbbbbbbbbbiiiiiiiwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxaaaaaaaaaaaaaaaadccccckkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkc...

output:

242729

result:

ok single line: '242729'

Extra Test:

score: 0
Extra Test Passed