accumulate with a Lambda

Lab C++ Intermediate 20 points

Read n words. Use accumulate with a lambda to build a single string of their initials in upper case, and again to compute the total number of letters.

Input

n, then n words.

Output

Two lines.

Example

Input

3
portable network graphics

Output

PNG
23

Sample input available Sample output available

Editor

C++

Hints

accumulate(begin, end, start, op) folds the range into one value.

Solution explanation

The starting value decides the result type - here a string and a size_t.

Show solution

#include <iostream>
#include <numeric>
#include <string>
#include <vector>
#include <cctype>
using namespace std;

int main() {
    int n;
    cin >> n;
    vector<string> w(n);
    for (auto &s : w) cin >> s;
    string initials = accumulate(w.begin(), w.end(), string(),
        [](string acc, const string &s) { return acc + static_cast<char>(toupper(s[0])); });
    size_t letters = accumulate(w.begin(), w.end(), size_t{0},
        [](size_t acc, const string &s) { return acc + s.size(); });
    cout << initials << "\n" << letters << "\n";
    return 0;
}

Output

Answer