이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
const int N_MAX = 5e3;
const int SIGMA_MAX = 26;
/**int query (string candidate) {
cout << candidate << "\n";
int ret; cin >> ret;
return ret;
}**/
int query (string str);
string getCopy (int letter, int f) {
string ret = "";
for (int i = 0; i < f; i ++)
ret = ret + char (letter + 'a');
return ret;
}
int freq[SIGMA_MAX];
string guess (int n, int s) {
int present = 0;
int N = n, SIGMA = s;
string aux;
for (int letter = 0; letter < SIGMA; letter ++) {
aux = getCopy (letter, N);
freq[letter] = query (aux);
if (freq[letter] > 0)
present ++;
}
string done = "";
for (int pos = N - 1; pos >= 0 && present > 1; pos --) {
int left = 0, right = 1;
while (right < SIGMA) {
if (freq[left] == 0) {
left ++;
right = max (right, left + 1);
continue;
}
if (freq[right] == 0) {
right ++;
continue;
}
aux = getCopy (left, freq[left]);
aux = aux + char (right + 'a');
aux = aux + done;
int len = query (aux);
if (len == freq[left])
right ++;
else {
left ++;
right = max (left + 1, right);
}
}
done = char (left + 'a') + done;
///cout << "pana acum done este egal cu " << done << "\n";
freq[left] --;
if (freq[left] == 0)
present --;
}
int missing = 0;
while (missing < SIGMA && freq[missing] == 0)
missing ++;
done = getCopy (missing, freq[missing]) + done;
return done;
}
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