process.stdin.resume(); process.stdin.setEncoding('ascii'); var input_stdin = ""; var input_stdin_array = ""; var input_currentline = 0; process.stdin.on('data', function (data) { input_stdin += data; }); process.stdin.on('end', function () { input_stdin_array = input_stdin.split("\n"); main(); }); function readLine() { return input_stdin_array[input_currentline++]; } /////////////// ignore above this line //////////////////// function main() { var n = parseInt(readLine()); a = readLine().split(' '); a = a.map(Number); // your code goes here a.sort(function(a,b){ return a-b; }); //console.log(a); var min = 10000000000; for(i=1;i Math.abs(a[i]-a[i-1])){ min = Math.abs(a[i]-a[i-1]); } } console.log(min); }