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#include<iostream>
#define N 4
#define M 3
using namespace std;
double func(string (*S)[M], string s1, short k) {
if(k < 1 || k > M) return -1;
short counter{};
short c_strings{};
for(int i = 0; i < N; ++i) {
for(int j = 0; j < k; ++j) {
++c_strings;
if(S[i][j].length() > s1.length())
++counter;
}
}
return static_cast<double>(counter*100/c_strings);
}
int main() {
string A[N][M] = {
{"red", "orange", "green"},
{"red", "orange", "green"},
{"red", "orange", "green"},
{"red", "orange", "green"},
};
cout << func(&A[0], "pink", 2);
return 0;
}
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