triangle

function solution(A) {
    if (A.length < 3) return 0;

    A = A.sort( (a,b) => a - b)
    for (var i=0; i< A.length -2; i++) {
        const [p, q, r] = A.slice(i, i+3)
        if ( (p + q) > r && (p+r) > q && (q+r) > p) 
            return 1
    }
    return 0
}