Mayan numerals: Difference between revisions
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=={{header|C++}}==
<syntaxhighlight lang="c++">
#include <algorithm>
#include <cstdint>
#include <iostream>
#include <string>
#include <unordered_map>
#include <vector>
const std::vector<std::string> MAYAN_DIGITS = { " Θ ", " ∙ ", " ∙∙ ", "∙∙∙ ", "∙∙∙∙", "────" };
const std::string BLANK = " ";
std::unordered_map<std::string, std::string> BORDER { { "horizontal_beam", "═" }, { "vertical_beam", "║" },
{ "lower_left", "╚" }, { "lower_central", "╩" }, { "lower_right", "╝" },
{ "upper_left", "╔" }, { "upper_central", "╦" }, { "upper_right", "╗" } };
std::vector<int32_t> to_base20(const int32_t& number) {
std::vector<int32_t> result;
result.emplace_back(number % 20);
int32_t n = number / 20;
while ( n != 0 ) {
result.emplace_back(n % 20);
n /= 20;
}
std::reverse(result.begin(), result.end());
return result;
}
std::vector<std::string> to_mayan_numeral(int32_t digit) {
std::vector<std::string> result(4, BLANK);
if ( digit == 0 ) {
result[3] = MAYAN_DIGITS[0];
return result;
}
for ( int32_t i = 3; i >= 0; --i ) {
if ( digit >= 5 ) {
result[i] = MAYAN_DIGITS[5];
digit -= 5;
} else {
result[i] = ( digit == 0 ) ? BLANK : MAYAN_DIGITS[digit];
break;
}
}
return result;
}
void display(const std::vector<std::vector<std::string>>& numerals) {
const int32_t index = numerals.size() - 1;
std::cout << BORDER["upper_left"];
for ( int32_t i = 0; i <= index; ++i ) {
for ( int32_t j = 0; j <= 3; ++j ) {
std::cout << BORDER["horizontal_beam"];
}
if ( i < index ) {
std::cout << BORDER["upper_central"];
} else {
std::cout << BORDER["upper_right"] << std::endl;
}
}
for ( int32_t i = 1; i <= 4; ++i ) {
std::cout << BORDER["vertical_beam"];
for ( int32_t j = 0; j <= index; ++j ) {
std::cout << numerals[j][i - 1] + BORDER["vertical_beam"];
}
std::cout << std::endl;
}
std::cout << BORDER["lower_left"];
for ( int32_t i = 0; i <= index; ++i ) {
for ( int32_t j = 0; j <= 3; ++j ) {
std::cout << BORDER["horizontal_beam"];
}
if ( i < index ) {
std::cout << BORDER["lower_central"];
} else {
std::cout << BORDER["lower_right"] << std::endl;
}
}
}
int main() {
for ( const int32_t& base10 : { 4'005, 8'017, 326'205, 886'205, 1'081'439'556 } ) {
std::cout << "Base 10 number, " << base10 << " to Mayan:" << std::endl;
std::vector<int32_t> digits = to_base20(base10);
std::vector<std::vector<std::string>> mayans;
for ( const int32_t& digit : digits ) {
std::vector<std::string> mayan = to_mayan_numeral(digit);
mayans.push_back(mayan);
}
display(mayans);
std::cout << std::endl;
}
}
</syntaxhighlight>
{{ out }}
<pre>
Base 10 number, 4005 to Mayan:
╔════╦════╦════╗
║ ║ ║ ║
║ ║ ║ ║
║────║ ║ ║
║────║ Θ ║────║
╚════╩════╩════╝
Base 10 number, 8017 to Mayan:
╔════╦════╦════╦════╗
║ ║ ║ ║ ∙∙ ║
║ ║ ║ ║────║
║ ║ ║ ║────║
║ ∙ ║ Θ ║ Θ ║────║
╚════╩════╩════╩════╝
Base 10 number, 326205 to Mayan:
╔════╦════╦════╦════╦════╗
║ ║ ║ ║ ║ ║
║ ║ ║────║ ║ ║
║ ║ ║────║────║ ║
║ ∙∙ ║ Θ ║────║────║────║
╚════╩════╩════╩════╩════╝
Base 10 number, 886205 to Mayan:
╔════╦════╦════╦════╦════╗
║ ║ ║ ║ ║ ║
║ ║ ║────║ ║ ║
║ ║────║────║────║ ║
║────║────║────║────║────║
╚════╩════╩════╩════╩════╝
Base 10 number, 1081439556 to Mayan:
╔════╦════╦════╦════╦════╦════╦════╗
║ ∙ ║ ∙∙ ║∙∙∙ ║∙∙∙∙║∙∙∙ ║ ∙∙ ║ ∙ ║
║────║────║────║────║────║────║────║
║────║────║────║────║────║────║────║
║────║────║────║────║────║────║────║
╚════╩════╩════╩════╩════╩════╩════╝
</pre>
=={{header|CLU}}==
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