QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#99347 | #6299. Binary String | Hunster | WA | 352ms | 5728kb | C++14 | 1.7kb | 2023-04-21 22:08:23 | 2023-04-21 22:08:26 |
Judging History
answer
#include <bits/stdc++.h>
char str[10000005];
int n, next[10000005];
int main() {
int data_count;
scanf("%d", &data_count);
for (int data = 1; data <= data_count; data++) {
scanf("%s", str);
n = std::strlen(str);
[&] {
int cnt0 = 0;
for (int i = 0; i < n; i++) cnt0 += str[i] == '0';
if (cnt0 <= n / 2) {
std::reverse(str, str + n);
for (int i = 0; i < n; i++) str[i] = str[i] == '0' ? '1' : '0';
}
}();
int ans = [&] {
int max = 0;
for (int i = 0, now = 0; i < 5 * n; i++) {
int p = i % n;
if (str[p] == '1') now++;
else now--;
if (now < 0) now = 0;
max = std::max(max, now);
}
return max;
}() - (n != 1);
for (int i = 0, now = 0, tag = 0; i < 5 * n; i++) {
int p = i % n;
if (str[p] == '1') now++;
if (now && !tag) {
str[p] = '1';
now--;
tag = 1;
}
else {
str[p] = '0';
tag = 0;
}
}
for (int i = n - 1; i >= 0; i--) str[i + 1] = str[i];
next[1] = 0;
for (int i = 2, j = 0; i <= n; i++) {
while (j != 0 && str[j + 1] != str[i]) j = next[j];
if (str[j + 1] == str[i]) j++;
next[i] = j;
}
if (n % (n - next[n]) == 0) ans += n - next[n];
else ans += n;
printf("%d\n", ans);
}
return 0;
}
/*
3
1
001001
0001111
*/
Details
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Test #1:
score: 100
Accepted
time: 3ms
memory: 5640kb
input:
3 1 001001 0001111
output:
1 3 9
result:
ok 3 number(s): "1 3 9"
Test #2:
score: -100
Wrong Answer
time: 352ms
memory: 5728kb
input:
262144 000000000000000000 100000000000000000 010000000000000000 110000000000000000 001000000000000000 101000000000000000 011000000000000000 111000000000000000 000100000000000000 100100000000000000 010100000000000000 110100000000000000 001100000000000000 101100000000000000 011100000000000000 11110000...
output:
0 18 18 19 18 18 19 20 18 18 18 19 19 19 20 21 18 18 18 19 18 18 19 20 19 19 19 20 20 20 21 22 18 18 18 19 18 18 19 20 18 18 18 19 19 19 20 21 19 19 19 19 19 19 20 21 20 20 20 21 21 21 22 23 18 18 18 19 18 18 19 20 18 18 18 19 19 19 20 21 18 18 18 19 18 18 19 20 19 19 19 20 20 20 21 22 19 19 19 19 1...
result:
wrong answer 1st numbers differ - expected: '1', found: '0'