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#792922#9430. Left Shifting 2UESTC_DECAYALI#AC ✓7ms4328kbC++20979b2024-11-29 15:05:022024-11-29 15:05:03

Judging History

你现在查看的是最新测评结果

  • [2024-11-29 15:05:03]
  • 评测
  • 测评结果：AC
  • 用时：7ms
  • 内存：4328kb
查看
  • [2024-11-29 15:05:02]
  • 提交

answer

#include <iostream>
#include <format>

int main() {
    int T; std::cin >> T; while(T--) {
        std::string s; std::cin >> s;
        int ans = 0, t = 0, n = s.size();
        bool flag = true;
        for(int l = 0, r; l < n; l = r) {
            r = l + 1;

            while(r < n && s[r] == s[l]) r++;
            if(r - l == n) {
                flag = false;
                ans = n / 2;
                break;
            }
            if((l == 0 || r == n) && s[0] == s[n - 1])
                continue;

            ans += (r - l) / 2;
            if((r - l) % 2 == 0) t = 1;
        }
        if(flag && s[0] == s[n - 1]) {
            int l, r;
            for(l = 0; l < n && s[l] == s[0]; l++);
            for(r = n - 1; r >= 0 && s[r] == s[0]; r--);
            ans += (l + (n - 1) - r) / 2;
            if((l + n - r - 1) % 2 == 0) t = 1;
        }
        std::cout << std::max(0, ans - t) << char(10);
    }
    return 0;
}
源文件, 语言: C++20

这程序好像有点Bug，我给组数据试试？

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3568kb

input:

3
abccbbbbd
abcde
x

output:

2
0
0

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 6ms
memory: 3572kb

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: 5ms
memory: 4324kb

input:

1
cbppzfsncqyzmuwrcvtxsciucxusskcjhaanwhqmyncytwhkubrvcqxgcehdxyewdyvpqjcmrnmlgrytrucexmmfulqbtfctehphmrzkosyvhtvjrromqncbgsjcwhmlqidkycaxyhsrduoxayntuhqubvboseeziwjvrfagsbvtxjjbexnajqapgxydwtztzbbdpoydnjipfizdfpmczgqvdmpvxbqubtygkfpdeonegfzsttirbhzkobbigwneyvtcxndfkljdvbbcfnadtfhgohfzqeidtgyandhnvb...

output:

18631

result:

ok single line: '18631'

Test #4:

score: 0
Accepted
time: 7ms
memory: 4328kb

input:

1
qokalgqjhyijyizyihdsiapbgvzxzevykavqmgqzrpjngciqcljsuplvpaziebmumatzvngwrhgsxrtcoiseihejwpewvosnrgvhoxluliuwixgxylazufebrwgfebazrkghgwbpqavehtnakmzqsetghmzoydwmeqvoplkyqngwrgktylrnaojpkvuwfsjbizedqwhfteyjobrglkhkeoxmxdgyuygawvdjhyakpkjchyxaqthrglcldevrzskdaotkbsbmnstrsxervdvmaylqxnwaecfmdszwedrdom...

output:

0

result:

ok single line: '0'

Test #5:

score: 0
Accepted
time: 7ms
memory: 4240kb

input:

1
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbyyqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz...

output:

246800

result:

ok single line: '246800'

Test #6:

score: 0
Accepted
time: 7ms
memory: 4204kb

input:

1
yyyyyyyyyyyyyyyyyyyyyyyyhhhhhhhhaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnhhhhhhhhhhhhhhhhhhhhhhhiiiiiiiieeeeeeeeeesssssssbbbbbbbbbbiiiiiiiwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxaaaaaaaaaaaaaaaadccccckkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkc...

output:

242729

result:

ok single line: '242729'

Extra Test:

score: 0
Extra Test Passed
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