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#! /usr/bin/node
"use strict"
function luckynumbers (a) {
var maxs = new Set();
for (let x = 0; x < a[0].length; x++) {
var max = [0, 0, 0];
for (let y = 0; y < a.length; y++) {
if (a[y][x] > max[0]) {
max = [a[y][x], y, x];
}
}
maxs.add(max);
}
var mins = new Set();
for (let y = 0; y < a.length; y++) {
var min = [a[y][0], y, 0];
for (let x = 0; x < a[0].length; x++) {
if (a[y][x] < min[0]) {
min = [a[y][x], y, x];
}
}
mins.add(min);
}
for (let i of maxs) {
for (let j of mins) {
if (i[0] == j[0] && i[1] == j[1] && i[2] == j[2]) {
return i[0];
}
}
}
return -1;
}
if (luckynumbers([[3, 7, 9], [9, 11, 13], [15, 16, 17]]) == 15) {
process.stdout.write("Pass");
} else {
process.stdout.write("FAIL");
}
process.stdout.write(" ");
if (luckynumbers([[1, 10, 4, 2], [9, 3, 8, 7], [15, 16, 17, 12]]) == 12) {
process.stdout.write("Pass");
} else {
process.stdout.write("FAIL");
}
process.stdout.write(" ");
if (luckynumbers([[7, 8], [1, 2]]) == 7) {
process.stdout.write("Pass");
} else {
process.stdout.write("FAIL");
}
process.stdout.write("\n");
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