UVA Online Judge solution 508 - Morse Mismatches - Solution in C++ - Volume 5

UVA Online Judge solution 508 - Morse Mismatches - Solution in C++ - Volume 5

UVA Online Judge Solution  508 - Morse Mismatches  | Volume 5
UVA Problem Link - https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=449

Problem Name:  508 - Morse Mismatches  solution
Problem Number : UVA -  508 - Morse Mismatches  solution
Online Judge : UVA Online Judge Solution
Volume: 5
Solution Language : C plus plus

UVA Solution  508 - Morse Mismatches Code in CPP:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <algorithm>
#include <vector>
#include <queue>
#include <map>
#include <set>
#include <iostream>
#include <sstream>
using namespace std;

map<string, string> morse;
map<string, string> dict;
int dist(string s1, string s2) {
    if (s1 == s2)   return 0;
    if (s1.length() > s2.length())
        swap(s1, s2);
    if (s1 != s2.substr(0, s1.length()))    return 0x3f3f3f3f;
    return (int) (s2.length() - s1.length());
}
string encode(string s) {
    string ret = "";
    for (int i = 0; i < s.length(); i++)
        ret += morse[string(1, s[i])];
    return ret;
}
string decode(string s) {
    string ret = dict.begin()->first;
    int mn = 0x3f3f3f3f;
    for (map<string, string>::iterator it = dict.begin();
         it != dict.end(); it++) {
        int d = dist(it->second, s);
        if (d < mn) {
            mn = d, ret = it->first;
        } else if (d == mn && d == 0 && *ret.rbegin() != '!') {
            ret += "!";
        }
    }
    if (mn)
        ret += "?";
    return ret;
}
int main() {
    string s1, s2;
    while (cin >> s1 && s1 != "*") {
        cin >> s2;
        morse[s1] = s2;
    }
    while (cin >> s1 && s1 != "*")
        dict[s1] = encode(s1);
    while (cin >> s1 && s1 != "*")
        cout << decode(s1) << endl;
    return 0;
}

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