1、二维数组中的查找

bool Find(int target, vector<vector<int> > array) {
    int rowCount = array.size();
    int colCount = array[0].size();
    int i = rowCount - 1, j = 0;
    while (i >= 0 && j < colCount) {
        if (target > array[i][j]) {
            j++;
        }
        else if (target < array[i][j]) {
            i--;
        }
        else return true;
    }
    return false;
}