题目：

题解：

int* getRow(int rowIndex, int* returnSize) {*returnSize = rowIndex + 1;int* row = malloc(sizeof(int) * (*returnSize));row[0] = 1;for (int i = 1; i <= rowIndex; ++i) {row[i] = 1LL * row[i - 1] * (rowIndex - i + 1) / i;}return row;
}