Submission #52333458

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Source Code Expand

#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>
#include <unordered_map>
using namespace std;
int main() {
    string s; cin >> s;
    unordered_map<char, int> Map;
    for (int i = 0; i < s.length(); i++) Map[s[i]]++;
    bool t = true;
    vector<string> a(101);
    for (char c = 'a'; c <= 'z'; c++) a[Map[c]].push_back(c);
    for (int i = 1; i < a.size(); i++) if (!(a[i].length() == 0 || a[i].length() == 2)) t = false;
    if (t) cout << "Yes" << endl;
    else cout << "No" << endl;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:10:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   10 |     for (int i = 0; i < s.length(); i++) Map[s[i]]++;
      |                     ~~^~~~~~~~~~~~
Main.cpp:14:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<std::__cxx11::basic_string<char> >::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   14 |     for (int i = 1; i < a.size(); i++) if (!(a[i].length() == 0 || a[i].length() == 2)) t = false;
      |                     ~~^~~~~~~~~~

Judge Result