#include "paint.h"
#include <bits/stdc++.h>
using namespace std;
string solve(string s, vector<int> c) {
int lst = 0;
for (int k = 0; k < (int)c.size(); k++) {
bool flag;
int x = c[k];
do {
flag = true;
for (int i = lst; i < lst + x; i++) {
// cerr << i << " " << endl;
flag &= (s[i] == '.');
}
if (flag) {
for (int i = lst; i < lst + x; i++) {
s[i] = 'X';
}
lst += x;
} else {
lst++;
}
} while (!flag);
lst++;
}
return s;
}
std::string solve_puzzle(std::string s, std::vector<int> c) {
int n = s.size();
string a, b;
reverse(s.begin(), s.end());
reverse(c.begin(), c.end());
a = solve(s, c);
reverse(a.begin(), a.end());
reverse(s.begin(), s.end());
reverse(c.begin(), c.end());
b = solve(s, c);
swap(a, b);
// cerr << a << endl;
// cerr << b << endl;
int i, j;
i = j = 0;
while (i < n && a[i] != 'X')
i++;
while (j < n && b[j] != 'X')
j++;
vector<int> aa, bb;
aa = bb = vector<int>(n, -1);
for (int q = 0; q < (int)c.size(); q++) {
while (i < n && a[i] == 'X') {
aa[i] = q;
i++;
}
while (j < n && b[j] == 'X') {
bb[j] = q;
j++;
}
i++;
j++;
}
vector<int> q(n, -1);
for (int i = 0; i < n; i++) {
q[i] = (aa[i] == -1 ? bb[i] : aa[i]);
if (s[i] == '_') continue;
if (aa[i] == bb[i] && a[i] == 'X') {
s[i] = 'X';
}
}
string t = s;
for (int i = 0; i < n; i++) {
if (s[i] != '.') continue;
if (a[i] == 'X' || b[i] == 'X') {
t[i] = '?';
continue;
}
int l, r;
l = r = i;
if (s[i] == '.') {
while (l >= 0 && aa[l] == -1) {
if (s[l] != '.') break;
l--;
}
while (r < n && bb[r] == -1) {
if (s[r] != '.') break;
r++;
}
}
if (q[l] == q[r] && q[l] != -1) {
t[i] = '?';
}
}
// for (int i = 0; i < n; i++)
// cout << aa[i] << " ";
// cout << endl;
// for (int i = 0; i < n; i++)
// cout << bb[i] << " ";
// cout << endl;
// for (int i : q)
// cout << i << " ";
// cout << endl;
return t;
}
