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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 |
---|---|---|---|---|---|---|---|---|---|
#321682 | #7705. Make Your Own Morse Code Palindrome | ishmeal# | WA | 1ms | 3900kb | C++23 | 1.8kb | 2024-02-05 06:40:37 | 2024-02-05 06:40:38 |
Judging History
answer
#include "bits/stdc++.h"
using namespace std;
map<char,string> m{
{'A', "01"},
{'B', "1000"},
{'C', "1010"},
{'D', "100"},
{'E', "0"},
{'F', "0010"},
{'G', "110"},
{'H', "0000"},
{'I', "00"},
{'J', "0111"},
{'K', "101"},
{'L', "0100"},
{'M', "11"},
{'N', "10"},
{'O', "111"},
{'P', "0110"},
{'Q', "1101"},
{'R', "010"},
{'S', "000"},
{'T', "1"},
{'U', "001"},
{'V', "0001"},
{'W', "011"},
{'X', "1001"},
{'Y', "1011"},
{'Z', "1100"},
{'0', "11111"},
{'1', "01111"},
{'2', "00111"},
{'3', "00011"},
{'4', "00001"},
{'5', "00000"},
{'6', "10000"},
{'7', "11000"},
{'8', "11100"},
{'9', "11110"}
};
map<string,char> rm;
int best = INT_MAX;
string ans = "";
void build(string s) {
reverse(s.begin(),s.end());
int n = s.size();
vector<pair<int,string>> dp(n+1, {INT_MAX,""});
dp[0] = {0, ""};
for (int i = 0; i < n; i++) {
for (int j = 1; j <= 5; j++) {
if (i+j > n) break;
string t = s.substr(i,j);
if (rm.count(t)) {
dp[i+j] = min(dp[i+j], {dp[i].first+1, dp[i].second+rm[t]});
}
}
}
if (dp[n].first < best) {
best = dp[n].first;
ans = dp[n].second;
}
}
int main() {
cin.tie(0)->sync_with_stdio(0);
for (auto [c, s] : m) {
assert(!rm.count(s));
rm[s] = c;
}
string s;
{
string t; cin >> t;
for (char c : t) s += m[c];
}
int n = s.size();
for (int i = (n-1)/2; i < n; i++) {
{
int j = i+1;
int i = j-1;
bool good = true;
while (j < n) {
if (s[i] != s[j]) good = false;
j++,i--;
}
if (good) build(s.substr(0, i+1));
}
}
for (int i = n/2; i < n; i++) {
{
int j = i;
int i = j;
bool good = true;
while (j < n) {
if (s[i] != s[j]) good = false;
j++,i--;
}
if (good) build(s.substr(0, i+1));
}
}
for (int i = 0; i < 32; i++) {
string t = s;
for (int j = i; j; j /= 2) {
t += '0' + (j&1);
}
build(t);
}
cout << best << ' ' << ans << '\n';
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3708kb
input:
FOOT
output:
1 L
result:
ok correct
Test #2:
score: 0
Accepted
time: 0ms
memory: 3680kb
input:
FOOTS
output:
3 1OL
result:
ok correct
Test #3:
score: 0
Accepted
time: 0ms
memory: 3604kb
input:
FOOTS
output:
3 1OL
result:
ok correct
Test #4:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
FOOTSTOOL
output:
0
result:
ok correct
Test #5:
score: 0
Accepted
time: 1ms
memory: 3900kb
input:
OOTNX
output:
2 J0
result:
ok correct
Test #6:
score: -100
Wrong Answer
time: 0ms
memory: 3604kb
input:
3 FRENCH HENS
output:
1 S
result:
wrong answer not a palindrome