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 |
---|---|---|---|---|---|---|---|---|---|
#662153 | #9430. Left Shifting 2 | Eunoiay | AC ✓ | 4ms | 5736kb | C++20 | 954b | 2024-10-20 21:33:06 | 2024-10-20 21:33:06 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
void solve() {
string s;
cin >> s;
int n = s.size();
if (count(s.begin(), s.end(), s[0]) == n) {
cout << n / 2 << "\n";
return;
}
if (s[0] == s[n - 1]) {
string t;
int i = n - 1;
while (i >= 0 && s[i] == s[0]) {
t += s[i];
i--;
}
t += s.substr(0, i + 1);
s = t;
}
vector<int> f(n);
int tot = 0;
for (int i = 0, j = 0; i <= n; i++) {
if (i == n || s[i] != s[j]) {
tot += (i - j) / 2;
while (j < i) {
f[j] = i - j;
j++;
}
}
}
int ans = tot;
for (int i = 0; i < n; i++) {
int res = tot - f[i] / 2;
for (int j = 1; j < f[i]; j++) {
ans = min(ans, res + j / 2 + ((f[i] - j) / 2));
}
i = i + f[i] - 1;
}
cout << ans << "\n";
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
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: 0ms
memory: 3528kb
input:
3 abccbbbbd abcde x
output:
2 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 3ms
memory: 3552kb
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: 4ms
memory: 5724kb
input:
1 cbppzfsncqyzmuwrcvtxsciucxusskcjhaanwhqmyncytwhkubrvcqxgcehdxyewdyvpqjcmrnmlgrytrucexmmfulqbtfctehphmrzkosyvhtvjrromqncbgsjcwhmlqidkycaxyhsrduoxayntuhqubvboseeziwjvrfagsbvtxjjbexnajqapgxydwtztzbbdpoydnjipfizdfpmczgqvdmpvxbqubtygkfpdeonegfzsttirbhzkobbigwneyvtcxndfkljdvbbcfnadtfhgohfzqeidtgyandhnvb...
output:
18631
result:
ok single line: '18631'
Test #4:
score: 0
Accepted
time: 0ms
memory: 5736kb
input:
1 qokalgqjhyijyizyihdsiapbgvzxzevykavqmgqzrpjngciqcljsuplvpaziebmumatzvngwrhgsxrtcoiseihejwpewvosnrgvhoxluliuwixgxylazufebrwgfebazrkghgwbpqavehtnakmzqsetghmzoydwmeqvoplkyqngwrgktylrnaojpkvuwfsjbizedqwhfteyjobrglkhkeoxmxdgyuygawvdjhyakpkjchyxaqthrglcldevrzskdaotkbsbmnstrsxervdvmaylqxnwaecfmdszwedrdom...
output:
0
result:
ok single line: '0'
Test #5:
score: 0
Accepted
time: 3ms
memory: 5736kb
input:
1 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbyyqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz...
output:
246800
result:
ok single line: '246800'
Test #6:
score: 0
Accepted
time: 2ms
memory: 5696kb
input:
1 yyyyyyyyyyyyyyyyyyyyyyyyhhhhhhhhaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnhhhhhhhhhhhhhhhhhhhhhhhiiiiiiiieeeeeeeeeesssssssbbbbbbbbbbiiiiiiiwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxaaaaaaaaaaaaaaaadccccckkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkc...
output:
242729
result:
ok single line: '242729'
Extra Test:
score: 0
Extra Test Passed