String

[haiyen223]

no comment

  #include<iostream>
#include<vector>
#include<cstring>

using namespace std;

vector<string> tachtu(string sent){
    vector<string> words;
    int len = sent.length();

    int i = 0, start = 0;
    for(; i<len; i++){
        if(sent.at(i)==' '){
            words.push_back(sent.substr(start, i-start));
            start=i+1;
        }
    }
    words.push_back(sent.substr(start, i-start));
    return words;
}

void maxmin(const vector<string>& words){
    int len = words.size();

    int maxlen = 0, minlen = 0, imax, imin;
    string strmax="", strmin="";

    if(len > 0){
        int i=0;
        strmax=strmin=words[i];
        imax=imin=0;
        maxlen=minlen=words[i].length();

        for(i=1; i<len; i++){
            if((words[i].length() > maxlen)||(words[i].length()==maxlen)&&(words[i].compare(strmax)<0)){
                imax = i;
                strmax = words[imax];
                maxlen = words[i].length();
            }

            if((words[i].length() < minlen)||(words[i].length()==minlen)&&(words[i].compare(strmin)<0)){
                imin = i;
                strmin = words[imin];
                minlen = words[i].length();
            }
        }

    }
    cout << "Max: " << strmax << ": " << maxlen << endl;
    cout << "Min: " << strmin << ": " << minlen << endl;
}

int main(){
    string sent;
    cout << "Nhap vao mot xau: ";
    getline(cin, sent);
    vector<string> words = tachtu(sent);
    maxmin(words);
    return 0;
}

[MikeyBoy]

That's.... nice?

Was there a point to this? Do you have a problem? A question?

[Enoizat]

Standard library is there to be taken advantage of:

#include <iostream>
#include <iterator>
#include <limits>
#include <sstream>
#include <string>
#include <vector>

std::vector<std::string> tachtu(const std::string& sent);
void maxmin(const std::vector<std::string>& words);
void waitForEnter();

int main()
{
    std::cout << "Nhap vao mot xau: ";
    std::string sent;
    std::getline(std::cin, sent);
    std::vector<std::string> words = tachtu(sent);
    maxmin(words);
    waitForEnter();
    return 0;
}

std::vector<std::string> tachtu(const std::string& sent)
{
    std::istringstream sstr(sent);
    std::vector<std::string> words {std::istream_iterator<std::string>{sstr},
                                    std::istream_iterator<std::string>{}};
    return words;
}

void maxmin(const std::vector<std::string>& words)
{
    std::string longest, shortest(100, ' '); // reasonable length
    for(const auto& str : words) {
        if(str.length() > longest.length())  { longest  = str; }
        if(str.length() < shortest.length()) { shortest = str; }
    }
    std::cout << "Longest: \"" << longest << "\": " 
              << longest.length() << '\n';
    std::cout << "Shortest: \"" << shortest << "\": " 
              << shortest.length() << '\n';
}

void waitForEnter()
{
    std::cout << "\nPress ENTER to continue...\n";
    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}

Nhap vao mot xau: As long as poverty, injustice and gross inequality persist in our world, 
none of us can truly rest (Nelson Mandela)
Longest: "inequality": 10
Shortest: "As": 2

Press ENTER to continue...