var countGoodRectangles = function(rectangles) {
let maxLen = 0;
let result = 1;
for(let i = 0; i < rectangles.length; i++){
const min = Math.min(rectangles[i][0], rectangles[i][1]);
if(min > maxLen){
maxLen = min;
result = 1;
}else if(min === maxLen){
result++;
}
}
return result;
};