1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
#include <cassert>
#include <iostream>
#include <string>
#include <algorithm>

std::string getInput() {
    int testsCount = 0;
    std::cin >> testsCount;
    std::string testResults;
    testResults.reserve(testsCount);
    std::cin >> testResults;
    return testResults;
}

int countScore(const std::string& testResults) {
    const int n = testResults.size();
    const int step = n / 10;
    int score = 0;
    for (int i = 0; i < n; i += step) {
        const int count = std::count(testResults.begin() + i, testResults.begin() + i + step, 'N');
        if (count <= 0) {
            score++;
        }
    }
    return score;
}

int main() {
    const std::string testResults = getInput();
    std::cout << countScore(testResults);
}