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// g++ -Wall -Wextra -Wpedantic -std=c++17 cpp/ch-1.cpp
#include <iostream>
#include <sstream>
#include <vector>
int fun(std::vector<int> ints) {
for (size_t i = 0; i < ints.size(); ++i) {
if ((int) i % 10 == ints[i])
return i;
}
return -1;
}
int main(void) {
std::vector<std::pair<std::vector<int>, int>> tests = {
{{0, 1, 2}, 0},
{{4, 3, 2, 1}, 2},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 0}, -1}
};
for (const auto& [input, expected_output] : tests) {
int got = fun(input);
if (got != expected_output) {
std::stringstream error_msg;
error_msg << "Expected " << expected_output << ", got " << got;
throw std::runtime_error(error_msg.str());
}
}
std::cout << "done-testing, success\n";
}
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