Linkedin Interview Question for Senior Software Development Engineers


Country: United States




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c++ solution
use an array as index of a multi-base on different digit number

vector<int> dimension = getDim();
	//subtract 1 from every dimension to use as index
	for (int idx = 0; idx < dimension.size(); idx++) {
		dimension[idx]--;
	}
	
	//use as the array of index pass to getElement
	vector<int> idxV = dimension;
	long retSum = 0;
	while(true) {
		int idx = 0;
		//update index array
		while(true) {
			//all iteration are done. return sum
			if (idx >= dimension.size())
				return retSum;

			if (idxV[idx] == 0) {
				idxV[idx] = dimension[idx];
				idx++;
			} else {
				idxV[idx]--;
				break;
			}
		}

		retSum += getElement(idxV);
	}

- leochen40505 May 27, 2019 | Flag Reply


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